US20060135252A1 - System and method for betting on a subset of participants in an event according to multiple groups - Google Patents

Abstract

A method of managing bets is provided. The method includes receiving at least one group bet for an event having a set of participants. A first group comprises a first subset of the participants and a second group comprises a second subset of the participants. The group bet comprises a bet that one of the first subset of participants will win the event. The method continues by receiving results of the event identifying a winning participant. The method concludes by determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant.

Description

RELATED APPLICATION
• This application is a continuation-in-part of U.S. application Ser. No. 11/022,394, filed Dec. 22, 2004, entitled “System and Method for Betting on a Subset of Participants in an Event Wherein Betting Parameters May Change Over Time,” by Lee M. Amaitis et al.; U.S. application Ser. No. 10/983,279, filed Nov. 5, 2004, entitled “System and Method for Betting on a Subset of Participants in an Event,” by Lee M. Amaitis et al.; and U.S. application Ser. No. 10/453,769, filed Jun. 3, 2003, entitled “System and Method for Betting on a Subset of Participants in an Event,” by Lee M. Amaitis et al.; which are incorporated by reference herein for all purposes.
TECHNICAL FIELD OF THE INVENTION
• This invention relates in general to betting on events and, more particularly, to a system and method for betting on a subset of participants in an event according to multiple groups.
BACKGROUND OF THE INVENTION
• Wagering on sporting events, such as horse races, for example, is a large and growing industry in many parts of the world. Various types of betting products or systems are available for various types of sporting events For example, typical horse racing bets allow bettors to bet on a single horse or on several horses in a particular race or series of races. For instance, a bettor can bet on a particular horse to finish first (win), finish in the top two (place), or finish in the top three (show). A bettor may also make various combination bets with multiple horses, such as an exacta bet (covering the top two horses in order) or a trifecta bet (covering the top three horses in order). In addition, a bettor may bet on a series of races, such as the daily double (winners of two consecutive races), the pick-three (winners of three consecutive races), and the pick-six (winners of six consecutive races), for example.
• In a pari-mutuel betting system, all bets regarding a particular event are aggregated, a commission (or “take-out”) is taken by the track, and the remainder is distributed among the winning bettors. For example, pari-mutuel betting systems are commonly used in North America (and other various places throughout the world) for betting on horse races.
SUMMARY OF THE INVENTION
• According to one embodiment, a method of managing bets is provided. The method includes receiving one or more win bets and one or more group bets. Each win bet includes a bet that a participant selected from a set of participants in an event will win the event. Each group bet includes a bet that one of a subset of the set of participants will win the event, wherein the subset includes a plurality of the set of participants. Results of the event identifying a winning participant from the set of participants are received. An amount of a win bet payout for at least a portion of the win bets that comprise a bet on the winning participant is determined. An amount of a group bet payout for at least one of the group bets is also determined.
• According to another embodiment, a system for managing bets is provided. The system includes a memory coupled to a processor. The memory is operable to store one or more win bets and one or more group bets. Each win bet includes a bet that a participant selected from a set of participants in an event will win the event. Each group bet includes a bet that one of a subset of the set of participants will win the event, wherein the subset includes a plurality of the set of participants. The memory is also operable to store results of the event identifying a winning participant from the set of participants. The processor is operable to determine an amount of a win bet payout for at least a portion of the win bets that comprise a bet on the winning participant, and also to determine an amount of a group bet payout for at least one of the group bets.
• According to yet another embodiment, another method of managing bets is provided. The method includes identifying a set of participants in an event and receiving a group bet for the event. The group bet comprises a bet that one of an undefined subset of the set of participants will win the event. The undefined subset of participants associated with the group bet is defined at some time after receiving the group bet by determining participants for the subset of participants. For example, the undefined subset of participants may be defined after the close of betting on the event. Results of the event that identify a winning participant are received, and an amount of a group bet payout for the group bet is determined based at least on whether the defined subset of participants includes the winning participant.
• According to still another embodiment, another method of managing bets is provided. A set of participants in an event are identified. A group bet that one of a subset of the set of participants will win the event is received. Odds of winning the race for at least one of the set of participants are determined at the time the group bet was received. Results of the event are received, the results identifying a winning participant. An amount of a group bet payout for the group bet is determined based at least on (a) whether the subset of participants includes the winning participant and (b) the odds of winning the race determined for the at least one participant at the time the group bet was received.
• Various embodiments of the present invention may benefit from numerous advantages. It should be noted that one or more embodiments may benefit from some, none, or all of the advantages discussed below.
• One advantage of the invention is that in an event which includes a set of participants, a bettor may bet on a subset of the set of participants, and win the bet if any of the subset of participants wins the event. Thus, for example, a bettor who believes that a particular participant in an event will not win the event, but is unsure of which other participant to bet on, may purchase a group bet which includes a group of participants which excludes the particular participant. For example, a bettor who believes that the favorite in a horse race will not win the race, but is unsure on which other horse to bet, may purchase a group bet which includes every horse in the field except for the favorite.
• In this manner, a bettor may bet on all horses other than the favorite (or another particular horse), thus effectively betting against the favorite, without having to place individual bets on each of the non-favorite horses. In some situations, a bettor may make such a group bet on an event when he or she otherwise would not have made a bet on the event, since the bettor need not place individual bets on each of the non-favorite horses. This may increase the total pool of wagers on the event, which may increase profits at least for the one or more entities that collect a percentage of the take-out on such wagers. Additionally, by allowing a bettor to make a group bet rather than make several individual bets, the resources of the betting system avoid becoming congested. This frees up bandwidth within the betting system for processing bets faster and for allowing other bets to be made.
• Another advantages is that in various embodiments, group bets offered to bettors may exclude any number of participants in a race, thus allowing a bettor to effectively bet against any number of participants in a race. For example, group bets may be offered that cover a group of participants which excludes one, two, three, or more particular participants, or one, two, three, or more favorites in the race. In some embodiments, the group of participants covered (or excluded) by a particular group bet may be undefined until some point after the particular group bet is received from a bettor. For example, a group bet may exclude (i.e., effectively comprise a bet against) one, two, three, or more favorite participants in a race, which favorite participant(s) may not be defined until, or after, the close of betting on the race, since one or more favorite participant(s) in a race may change during the period of betting on the race. Thus, a bettor may effectively bet against the favorite horse (or more than one favorite horses) in a race regardless of which horse ends up as the favorite horse after betting has closed on the race.
• Another advantage of the invention is that group bets may be offered having potential payouts fixed at the time that the group bets are placed by bettors. The potential payout for a particular group bet placed by a bettor at a particular time may be determined, and fixed, based on the various bets received on the race prior to that particular time. Thus, a bettor may effectively lock in a potential payout for a group bet, which may be desirable to the bettor.
• Another advantage of the invention is that any of the various group bets described herein may be provided in a pari-mutuel betting system in which all bets regarding a particular event are pooled.
• Other advantages will be readily apparent to one having ordinary skill in the art from the following figures, descriptions, and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
• For a more complete understanding of the present invention and for further features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
• FIG. 1 illustrates a system for receiving and managing win bets and group bets in accordance with an embodiment of the present invention;
• FIGS. 2A, 2B and2C illustrate example types of current odds data which may be determined by a betting system platform and communicated to clients in accordance with an embodiment of the present invention;
• FIG. 3A illustrates various equations for calculating the potential payouts and profits for both win bets and group bets, accounting for take-out;
• FIG. 3B illustrates various equations for calculating the potential payouts and profits for both win bets and group bets, without accounting for take-out;
• FIGS. 4A through 4F are charts illustrating various payouts for win bets and group bets for various results of an example horse race using the equations shown inFIGS. 3A and 3B in accordance with an embodiment of the present invention;
• FIG. 5 is a flowchart illustrating an example method of receiving, managing, and paying win bets and group bets in accordance with an embodiment of the present invention;
• FIG. 6 is a flowchart illustrating an example method of determining various odds, payouts and/or profits for win bets in accordance with an embodiment of the present invention;
• FIG. 7 is a flowchart illustrating an example method of determining various odds, payouts and/or profits for group bets in accordance with an embodiment of the present invention;
• FIG. 8 is a flowchart illustrating an example method of receiving, managing, and paying a group bet on a horse race covering a group of horses that is undefined until after the close of betting on the race in accordance with an embodiment of the present invention; and
• FIG. 9 illustrates an example method of receiving, managing, and paying group bets having potential payouts determined and fixed at the time the group bets are placed in accordance with an embodiment of the present invention; and
• FIG. 10A illustrates tables indicating total amounts wagered and potential payouts for various bets at the time that a first client places a first group bet during in the method ofFIG. 9;
• FIG. 10B illustrates tables indicating total amounts wagered and potential payouts for various bets at the time that a second client places a second group bet during in the method ofFIG. 9; and
• FIG. 11 illustrates a table illustrating an example allocation of participants among multiple groups for a group bet associated with a particular event.
DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE INVENTION
• Bet Management System
• FIG. 1 illustrates anexample system10 for receiving and managingbets12 in accordance with an embodiment of the present invention.System10 includes one or more betting system interfaces14 and a bettingsystem platform16 coupled by one or more communications networks18. In general, one ormore clients20 may receive betting information (such as event times, betting rules, betting options and odds, for example) and/orplace bets12 via betting system interfaces14. Betting system interfaces14 communicatesuch bets12 received fromclients20 to bettingsystem platform16. Bettingsystem platform16 stores the received bets12, determines appropriate odds and payouts, and communicates such odds and payouts to one or more of the betting system interfaces14.
• System10permits clients20 to place at least both win bets (or straight wagers)22, as well as group bets24 on a betting event having a set of event participants, such as a horse race, dog race, auto race, or golf tournament, for example. A win bet (or straight wager)22 is a bet that a particular participant will win the event. For example, in a horse race, an example of awin bet22 is a bet thatHorse #3 will win the race. Agroup bet24, on the other hand, is a bet that one of a group, or subset, of the set of participants will win the event. In some situations, the subset or group may include all of the participants in an event except for a single participant. In such situations, the group may include all of the participants in an event except for the “favorite,” or in other words, the participant having (or predicted to have) the best chance of winning the event. For example, in a 14-horse race in whichHorse #3 is the favorite, an example group bet24 is a bet that any of the horses except forHorse #3 will win the race.
• By placing agroup bet24, aclient20 may bet on all participants other than the favorite (or another particular participant), thus effectively betting against the favorite, without having to place individual bets on each of the non-favorite participants. Thus, for example, a bettor who believes that the favorite horse in a horse race a will not win the race, but is unsure on which other horse to bet, may purchase agroup bet24 which includes all horses except the favorite.
• In some embodiments, more than one different group bet24 may be available toclients20. For example, for a particular ten-horse race, a first group bet24 may be available which covers Horses #2-#10, thus effectively providing a bet againstHorse #1; a second group bet24 may be available which coversHorses #1 and #3-#10, thus effectively providing a bet againstHorse #2; and a third group bet24 may be available which covers Horses #1-#4 and #6-#10, thus effectively providing a bet againstHorse #5.
• In alternative embodiments, the group of participants covered by a particular group bet24 may exclude two, three, or any other number of participants in the event. For example, for the ten-horse race discussed above, agroup bet24 may be available which covers Horses #3-#4 and #6-#10, thus effectively providing a bet againstHorses #1, #2 and #5. The number of participants for which a particular group bet24 may cover may be related to the number of participants in the event. For example, in one embodiment, agroup bet24 in a six-horse race may cover all but one horse (such as the favorite horse), agroup bet24 in a eight-horse race may cover all but two horses (such as the top two favorites), and agroup bet24 in a race of ten or more horses may cover all but three horses (such as the top three favorites).
• In addition, in certain embodiments, the group of participants covered by a particular group bet24 is undefined until some time after the group bet24 is received from aclient20. For example, a particular group bet24 may comprise a bet against one or more favorite participants in a race event, where the one or more favorite participants are not determined until some point after the group bet24 is placed by aclient20, such as after betting on the race has been closed, for example. Thus, the group bet24 may cover all of the participants in the race event excluding the one or more favorite participants, at least one of which may change one or more times between the time that the group bet24 is placed by theclient20 and the time at which the favorite participants are determined, as discussed below with respect toFIG. 8.
• In some embodiments,system10 is a pari-mutuel betting system in which all bets12 (or at least a relevant group of bets12) regarding a particular event are pooled, a commission (or “take-out”) is taken by the track or other wagering provider, and the remainder is distributed among the winning bettors. In other embodiments,system10 may be another type of betting system, such as a betting system in whichclients20 take positions against a bookmaker, for example.
• Group bets24 may be incorporated into an existing pari-mutuel pool in the following manner. Suppose, for example, agroup bet24 which covers all participants in an event except for the favorite participant. At the close of betting on a particular event, the amount of each individual group bet24 (less the take-out rate) is divided and allocated among all participants covered by the group bet24 such that the potential payout (in other words, the payout if the group bet24 wins) for the group bet24 is related to the odds on the favorite participant. Generally, the lower the odds on the favorite participant (in other words, the more that has been bet on the favorite), the greater the potential payout for thegroup bet24. Thus, agroup bet24 in a race in which the favorite participant has 3-5 odds pays more than a similar group bet24 in a race in which the favorite participant has 2-1 odds. In one embodiment, the payout for the group bet24 is equal to the inverse of the odds on the favorite participant. Thus, in this embodiment, if the favorite participant has 2-5 odds, the group bet24 will payout at a 5-2 rate.
• In some embodiments, payouts for group bets24 for an event are determined based on the final odds determined for participants in the event (i.e., the odds determined for participants after betting has closed on the event). Thus, the potential payouts for group bets24 may change over time during the period of betting on the event as win bets22 and group bets24 continue to be received for the event. Examples of such embodiments are discussed below with reference toFIGS. 4-8.
• In other embodiments, payouts for each group bet24 for an event are determined—and fixed—based on odds determined for one or more participants in the event at the time (or substantially at the time) that that group bet24 is placed by aclient20. Thus, the potential payout for agroup bet24 may be essentially locked in when the group bet24 is placed. For example, suppose afirst client20 places a particular group bet24 for $2 that includes every horse in a race except for a particular horse. At the time that thefirst client20 places the particular group bet24, the potential payout for thefirst client20's group bet24 is determined (based on the then-current amounts wagered on and/or allocated to each horse in the race), and locked in, at $2.80. Further suppose that at some later time during the betting on the race, asecond client20 places the same particular group bet24 (i.e., covering every horse in the race except for the particular horse) for $2. At the time that thesecond client20 places the particular group bet24, the potential payout for thesecond client20's group bet24 is determined (based on the then-current amounts wagered on and/or allocated to each horse in the race), and locked in, at $3.05. Thus, if the group bet24 is determined to be a winning bet,first client20 will receive a payout of $2.80 andsecond client20 will receive a payout of $3.05. A more detailed example of such an embodiment is discussed below with reference toFIG. 9.
• Betting System Interfaces
• Betting system interfaces14 may include any suitable interface between aclient20 and bettingsystem platform16. For example, as shown inFIG. 1, betting system interfaces14 may include physical interfaces, such as track interfaces26 and/or off-track interfaces28. Track interfaces26 are generally located at a track, while off-track interfaces28 are generally located at an off-track-betting (OTB) establishment, such as an OTB parlor. Track interfaces26 and off-track interfaces28 may includetellers30, which may receivebets12 from and distribute payouts toclients20, and/or monitors32, which may be viewed byclients20 to monitor betting information such as the event time, the current odds, and the projected or actual payouts forvarious bets12, for example. In some situations, such information may be updated substantially in real time or at preset intervals (such as every 30 seconds, for example) asnew bets12 are placed and/or as information regarding the event changes, for example.Monitors32 may include, for example, tote-boards or closed-circuit televisions located at a track or OTB establishment.
• Track interfaces26 and/or off-track interfaces28 may also include one or more self-service betting machines33. In some embodiment, self-service betting machines33 allowclients20 to insert payment into the machine (such as cash or by using a voucher or a credit or debit card), place one or more win bets22 and/or group bets24, and receive a printout (such as a ticket, for example) indicating the bet or bets placed. Printouts for winning bets may be inserted into the self-service betting machine, such as to receive a payment voucher (which may be used to receive a payout from a teller30) or to placeadditional bets12. In other embodiments, self-service betting machines33 allowclients20 to use a credit or debit card to placebets12. The credit or debit card may have an associated account, which may be a betting account provided and/or managed by a betting account provider. In some embodiments, after the betting event is completed, aclient20 may insert or swipe his or her credit or debit card in the self-service betting machines33 in order to update the balance on the card. Self-service betting machines33 may also allow theclient20 to print out payment vouchers which may be presented to ateller30 in order to receive payments.
• As shown inFIG. 1, betting system interfaces14 may also include various non-physical interfaces, such as one ormore telephone operators34 and one ormore websites36.Clients20 may access or communicate with such non-physical interfaces via one or more communications networks44.Communications networks44 may include one or more servers, routers, switches, repeaters, backbones, links and/or any other appropriate type of communication devices coupled by links such as wire line, optical, wireless, or other appropriate links. In general,communication network28 may include any interconnection found on any communication network, such as a telephone network, a local area network (LAN), metropolitan area network (MAN), wide area network (WAN), the Internet, portions of the Internet, or any other data exchange system. To access bettingsystem interface14 usingcommunication networks44,clients20 may use a computer, a personal digital assistant (pda), a cell-phone, a remote paging device, an electronic mail communication device, a handheld betting device, or any other suitable mobile device. In certain embodiments,clients20 may receive any suitable information, such as betting information, from bettingsystem platform16 via mobile devices using, for example,communication networks44 and betting system interfaces14.
• Telephone operators34 may communicate betting information (such as event times, betting rules, betting options and odds, for example) to, and takebets12 from,clients20. Similarly,websites36 may communicate betting information toclients20 and allowclients20 to place bets12. One or more ofsuch websites36 may be hosted by one or more servers associated withsystem10, which server or servers may also host bettingsystem platform16 in some embodiments. In some embodiments, betting information available toclients20 viawebsites36 may be updated substantially in real time or at preset intervals (such as every 30 seconds, for example) asnew bets12 are placed and/or as information regarding the event changes, for example.
• In some embodiments, one ormore websites36 may be provided by, or associated with, anInternet betting provider46, for example.Internet betting provider46 may provide Internet account wagering by providing online betting accounts to one ormore clients20. Using an online betting account, aclient20 may interface with one ormore websites36 associated with theInternet betting provider46 in order to fund the account, view betting information regarding betting events, and place bets (such as win bets22 and/or group bets24). Such online betting accounts may include one or more various types of accounts, such as deposit accounts, credit accounts, stop-loss accounts, and hybrid accounts, for example.
• Some or all of the betting system interfaces14 ofsystem10 may be operable to offer or receive both winbets22 and group bets24. However, in some embodiments, one or more betting system interfaces14 may only offer or receive either winbets22 or group bets24. For example, in a particular embodiment, awebsite36 may allowclients20 to place both win bets22 and group bets24, while aparticular OTB parlor28 may only allowclients20 to place win bets22.
• Betting System Platform
• As discussed above, bettingsystem platform16 is operable to receive bets12 (including both winbets22 and group bets24) from betting system interfaces14, store the received bets12, determine appropriate odds and payouts, and communicate such odds and payouts to one or more of the betting system interfaces14, which may then display such odds and/or payouts toclients20. As shown inFIG. 1, bettingsystem platform16 includes aprocessor38 coupled to amemory40.Processor38 is generally operable to execute various algorithms or calculations to determinecurrent odds data50, such ascurrent pool data52,current odds data54 and/orpotential payout data56, shown inFIGS. 2A, 2B and2C, which are discussed below in greater detail.
• As discussed above, bettingsystem platform16 comprisesprocessor38 andmemory40.Processor38 may comprise any suitable processor that executes a bettingsystem software application42 or other computer instructions, such as a central processing unit (CPU) or other microprocessor, and may include any suitable number of processors working together.Memory40 may comprise one or more memory devices suitable to facilitate execution of the computer instructions, such as one or more random access memories (RAMs), read-only memories (ROMs), dynamic random access memories (DRAMs), fast cycle RAMs (FCRAMs), static RAM (SRAMs), field-programmable gate arrays (FPGAs), erasable programmable read-only memories (EPROMs), electrically erasable programmable read-only memories (EEPROMs), microcontrollers, or microprocessors.
• Memory40 is generally operable to store various information that may be used byprocessor38 in determining odds and/or payouts. For example,memory40 may comprise any suitable number of databases, which may be co-located or physically and/or geographically distributed. In the example shown inFIG. 1,memory40 may store any or all of the following: bettingsystem software application42,current odds data50, one ormore event parameters58, one ormore bet parameters60, one or more calculation rules62, one or more event results64, and one or more bet results66.Event parameters58 may comprise various parameters of one or more betting events, such as, for example, the type of event, the time, date and location of the event and/or the number (or in some cases, the name) of each of the participants in the event.Bet parameters60 may comprise various parameters of one or more receivedbets12, such as the identity of theclient20 who placed thebet12, the manner in which thebet12 was placed (such as via telephone, the Internet, or in person at a track or OTB establishment, for example), the type of bet12 (such as whether thebet12 is awin bet22 or agroup bet24, for example), the commission rate on thebet12, the participant or participants covered by thebet12 and/or the amount of thebet12, for example. Calculation rules62 may comprise various equations or other algorithms to be used byprocessor38 in determining variouscurrent odds data50. Examples of such equations are illustrated and discussed below with reference toFIGS. 3A and 3B. Event results64 may comprise various data regarding the results of one or more betting events, such as the final position of each participant in an event, whether there was a tie for any position and/or whether any participants did not finish the event, for example. Bet results66 may comprise various data regarding the results ofvarious bets12, such as the identity of theclient20 who placed thebet12, whether thebet12 was a winning bet, the determined payout for thebet12 and/or whether the payout was distributed to theclient20, for example.
• As discussed above, one ormore communications networks18 couple and facilitate wireless or wireline communication between one or more betting system interfaces14 and bettingsystem platform16. Eachcommunication network18 may include one or more servers, routers, switches, repeaters, backbones, links and/or any other appropriate type of communication devices coupled by links such as wire line, optical, wireless, or other appropriate links. In general, eachcommunication network18 may include any interconnection found on any communication network, such as a local area network (LAN), metropolitan area network (MAN), wide area network (WAN), the Internet, portions of the Internet, or any other data exchange system.
• As discussed above,processor38 is operable to execute bettingsystem software application42 to determinecurrent odds data50, such ascurrent pool data52,current odds data54 and/orpotential payout data56, shown inFIGS. 2A, 2B and2C.Processor38 may determine suchcurrent odds data50 based at least on data received frommemory40 and/or one or more betting system interfaces14. In addition,processor38 may update suchcurrent odds data50 based on new information being received by bettingsystem platform16. In some embodiments,processor38 may updatecurrent odds data50 in real time, substantially in real time, or at preset intervals (such as every 30 seconds, for example).
• As shown inFIG. 1,current odds data50 may be communicated to one or more betting system interfaces14 viacommunications network18, as indicated byarrow70.Current odds data50 may then be made available toclients20, such as via tote boards or monitors32 located at a track or OTB establishment, for example, or on anappropriate website36 that may be accessed byclients20, for example. In this manner,clients20 may have access to real-time or substantially real-timecurrent odds data50 regarding various betting events.
• Calculating Current Odds Data for Win Bets and Group Bets
• FIGS. 2A, 2B and2C illustrate example types ofcurrent odds data50 for an example horse race in whichHorse #4 is the favorite and agroup bet24 is offered which coversHorse #1,Horse #2,Horse #3 and Horse #5 (all horses except Horse #4).FIG. 2A illustratescurrent pool data52 reflecting the current total amount, or the current stake, of win bets22 on each horse and the current total amount, or the current stake, of group bets24. Thus,FIG. 2A illustrates the total current win bet stake on each horse, as well as the total current group bet stake on thegroup bet24.
• FIG. 2B illustratescurrent odds data54 reflecting the current odds on the win bet22 for each horse and current odds on the group bet24, both without and with take-out at a 15% rate.FIG. 2C illustratespotential payout data56 reflecting the potential payout for each win bet22 for each horse and the potential payout for the group bet24 if betting were closed at that point (in other words, if no additional bets were accepted for that betting event).FIG. 2C illustrates the potential payout for each bet both without and take-out at a 15% rate.
• As discussed above,processor38 may calculate variouscurrent odds data50 using various algorithms or equations.FIGS. 3A and 3B illustrate examples of such algorithms or equations in accordance with one embodiment of the present invention. In particular,FIGS. 3A and 3B illustrates various equations for calculating the current potential payout for eachbet12, including both winbets22 and group bets24, associated with a particular betting event. The equations shown inFIGS. 3A and 3B are similar; however, the equations shown inFIGS. 3A account for take-out, while the equations shown inFIGS. 3A do not. The equations shown inFIGS. 3A and 3B are best understood when viewed in conjunction withFIGS. 4A-4F, as discussed below.
• As discussed above,FIG. 3A illustrates various equations for calculating the current potential payout for both win bets22 and group bets24, accounting for take-out (commission). In particular,FIG. 3A illustrates an after-commission (AC) groupbet pool equation100; a participant's AC winbet stake equation102; a total AC winbet stake equation104; an AC group-participant win betpool equation106; a total AC pool on allparticipants equation108; an AC group betpool allocation equation110; a participant's totalAC stake equation112; a pair of alternative total AC group bet payout equations,114A and114B; a total AC group betprofit equation116; a pair of alternative AC payout per group bet unit currency equations,118A and118B; a pair of alternative total AC win bet payout equations,120A and120B; a total AC win betprofit equation122; and a pair of alternative AC payout per win bet unit currency equations,124A and124B.
• The AC group betpool equation100 may be used to determine the after-commission group bet pool, which is equal to the before-commission (BC) group bet pool minus the take-out. In some embodiments, the take-out is a percentage of eachbet12, and the total take-out for an event is thus that percentage of the total pool. For example, if the take-out rate is 15%, the take-out on each win bet22 orgroup bet24 is equal to 15% of such win bet22 orgroup bet24, and the total take-out for the event is 15% of the total pool for the event. However, it should be understood that in alternative embodiments, the take-out (commission) may be otherwise calculated. For example, a separate take-out rate may be charged for win bets22 and group bets24.
• The participant's AC winbet stake equation102 may be used to determine the total AC win bet stake on each participant in the event. According toequation102, the AC win bet stake on each participant is equal to the BC win bet stake on that participant minus the take-out.
• The total AC winbet stake equation104 may be used to determine the total AC win bet stake on all participants, which equals the sum of the AC win bet stake on each participant (as determined using equation102).
• The AC group-participant win betpool equation106 may be used to determine the total AC stake of win bets22 on each participant in the group, or subset, of participants covered by thegroup bet24. The participants in the group of participants covered by the group bet24 may be referred to as the “grouped participants.” For example, in a 5 horse race in whichHorse #4 is the favorite and a group bet coversHorses #1, 2, 3 and 5, the group-participant win betpool equation106 may be used to determine the total AC stake of win bets22 placed onHorses #1, 2, 3 and 5.
• The total AC pool on allparticipants equation108 may be used to determine the total AC pool, including the total pool of back bets22 and group bets24. According toequation108, the total AC pool is the sum of the total AC win bet stake (as determined by equation104) and the AC group bet pool (as determined by equation100).
• The AC group betpool allocation equation110 may be used to determine the allocation of the AC group bet pool among each of the grouped participants. According toequation110, the AC group bet pool (as determined using equation100) is allocated among the grouped participants in direct proportion to the stake of AC win bets22 placed on each of the grouped participants (as determined using equation102).
• The participant's totalAC stake equation112 may be used to determine the total AC stake on each participant in an event. According toequation112, the total AC stake on each participant is the sum of the AC win bet stake on that participant (as determined using equation102) and the portion of the AC group bet pool allocated to that participant (as determined using equation110).
• Each of the alternative total AC group bet payout equations,114A and114B, may be used to determine the potential total AC payout for the AC group bet pool if each participant were to win the event. According toequation114A, the total AC group bet payout for each particular participant is based on the total AC stake on all participants except for the particular participant (as determined using equation112), the total AC stake on the particular participant (as determined using equation112), and the portion of the AC group bet pool allocated to the particular participant (as determined using equation110). According toequation114B, the total AC group bet payout for each particular participant is based on the total AC pool on all participants (as determined using equation108), the portion of the AC group bet pool allocated to the particular participant (as determined using equation110), and the total AC stake on the particular participant (as determined using equation112).
• It should be understood that using the equations shown inFIG. 3A, the AC group bet payout will be the same if any of the subset of participants covered by the group bet24 wins the event. Thus, by placing agroup bet24, a bettor may effectively bet against a particular participant (the participant excluded from the subset of participants covered by the group bet24), and be assured of a particular payout if any of the participants covered by the group bet24 wins the event.
• The total AC group betprofit equation116 may be used to determine the potential total AC profit on the AC group bet pool if each participant were to win the event. According toequation116, the total AC group bet profit is equal to the total AC group bet payout (as determined using equation114) minus the total BC group bet pool.
• Each of the alternative AC payout per group bet unit currency equations,118A and118B, may be used to determine the potential AC payout per unit of currency (such as one dollar, one pound, or other unit of currency) wagered ongroup bet24 if the group bet24 were to win. For example, equations118A and/or118B may be used to determine the potential AC payout per dollar wagered ongroup bet24.
• According to equation118A, the potential AC payout per unit currency for each group bet24 is based on the BC group bet pool and the total AC group bet payout (as determined using equation114). According toequation118B, the potential AC payout per unit currency for each group bet24 is based on the total AC pool on all participants (as determined using equation108), the total AC stake on a particular participant (as determined using equation112), the portion of the AC group bet pool allocated to the particular participant (as determined using equation110), and the AC group bet pool (as determined using equation100).
• Each of the alternative total AC win bet payout equations120 may be used to determine the potential total AC payout for the total AC win bet stake on each particular participant if that participant were to win the event. According toequation120A, the total AC win bet payout for each particular participant is based on the total AC stake on all participants except for the particular participant (as determined using equation112), the total AC stake on the particular participant (as determined using equation112), and the AC win bet stake on the particular participant (as determined using equation102). According toequation120B, the total AC win bet payout for each particular participant is based on the total AC pool on all participants (as determined using equation108), the AC win bet stake on the particular participant (as determined using equation102), and the total AC stake on the particular participant (as determined using equation112).
• The total AC win betprofit equation122 may be used to determine the potential total AC profit on the total win bet stake on each particular participant if that participant were to win the event. According toequation122, the potential AC profit on the total win bet stake on each participant is equal to the potential total AC win bet payout for that participant (as determined using equation120) minus the total BC win bet stake on that participant.
• Each of the alternative AC payout per win bet unit currency equations124 may be used to determine the potential AC payout per unit of currency (such as one dollar, one pound, or other unit of currency) wagered on each win bet22 if that win bet22 were to win. For example,equations124A and/or124B may be used to determine the potential payout per dollar wagered on each winningwin bet22.
• According toequation124A, the potential AC payout per unit currency for each win bet22 on a particular participant is based on the total BC win bet stake for that participant and the potential AC total win bet payout for that participant (as determined using equation120). According to equation124B, the potential AC payout per unit currency for each win bet22 on a particular participant is based on the total AC pool on all participants (as determined using equation108) and the total BC stake on the particular participant (as determined usingequation138, shown inFIG. 3B).
• As discussed above,FIG. 3B illustrates various equations for calculating the current potential payout for both win bets22 and group bets24, without accounting for take-out (commission). In particular, equationsFIG. 3B illustrates a total BC winbet stake equation130; a BC group-participant win betpool equation132; a total BC pool on allparticipants134; a group betpool allocation equation136; a participant'stotal stake equation138; a pair of alternative total group bet payout equations,140A and140B; a total groupbet profit equation142; a pair of alternative payout per group bet unit currency equations,144A and144B; a pair of alternative total win bet payout equations,146A and146B; a total win bet profit equation148; and a pair of alternative payout per win bet unit currency equations,150A and150B.Equations130 through150 are similar toequations104 through124, respectively, shown inFIG. 3A, but without accounting for take-out.
• Example Calculation of Payouts/Profits for Win Bets and Group Bets
• FIGS. 4A through 4F may be used to illustrate the calculation of payouts and profits for win bets22 and group bets24 for various results of an example horse race using the example equations shown inFIGS. 3A and 3B in accordance with an embodiment of the present invention. In the example shown inFIGS. 4A through 4F, the horse race is a five-horse race,Horse #4 is the favorite, and agroup bet24 is provided which coversHorses #1, 2, 3 and 5 (all horses except Horse #4). It should be understood that the payouts and profits calculated as described above may comprises potential payouts and profits, which may be calculated and/or updated dynamically prior to the race, or actual payouts and profits, which may be calculated after betting on the race has been closed, or after the race has been run and/or declared “official.”
• Each ofFIGS. 4A through 4E illustrates the calculation of the potential payouts and profits for win bets and group bets if a particular horse were to win the race. In particular,FIG. 4A illustrates the calculation of the potential payouts and profits ifHorse #1 were to win;FIG. 4B illustrates the calculation of the potential payouts and profits ifHorse #2 were to win;FIG. 4C illustrates the calculation of the potential payouts and profits ifHorse #3 were to win;FIG. 4D illustrates the calculation of the potential payouts and profits ifHorse #4 were to win; andFIG. 4E illustrates the calculation of the potential payouts and profits ifHorse #5 were to win. In addition, each ofFIGS. 4A through 4E illustrates the calculation of the potential payouts and profits before (or without) accounting for take-out and after (or with) accounting for take-out.
• FIG. 4A illustrates a payout table200A and a stakes table202. Payout table200A indicates various payouts and profits assumingHorse #1 were to win. Such payouts and profits are based at least on stakes table202 and one or more calculations shown inFIGS. 3A and 3B.
• Payout table200A includes various payouts and profits as calculated before-commission (BC), as indicated byrow206A, and after-commission (AC), as indicated byrow204A. A take-out rate of 15% is used in this example. However, it should be understood that any suitable take-out rate may be used. For each case, BC and AC, payout table200A indicates the take-outrate208A; the total stake on all horses,210A; the total stake onHorse #1,212A; the total win bet payout ifHorse #1 were to win,214A; the payout per win bet unit currency ifHorse #1 were to win,216A; the total win bet profit ifHorse #1 were to win,218A; the total group bet payout ifHorse #1 were to win,220A; the payout per group bet unit currency ifHorse #1 were to win,222A; and the total group bet profit ifHorse #1 were to win,224A.
• Stakes table202 includes a before-commission (BC)section250 and an after-commission (AC) section252.BC section250 indicates example current BC win betstakes254 on each horse, a current BC total of win bets on allhorses256, a BC group-participantwin bet pool258, an example current BC group bet pool260, and the BC allocation of the group bet pool, indicated byreference number262. AC section252 indicates example current AC win betstakes270 on each horse, a current total of win bets on all horses272, an AC group-participantwin bet pool274, an example current ACgroup bet pool276, and the allocation of the AC group bet pool, indicated byreference number278.
• Various data withinBC section250 and AC section252 may be determined using one or more calculations shown inFIGS. 3A and 3B. For example, regardingBC section250, the current BC total of win bets on allhorses256 may be determined usingequation130; the BC group-participantwin bet pool258 may be determined usingequation132; and the BC allocation of the group bet pool, indicated as262, may be determined usingequation136.
• Regarding AC section252, the current AC win betstakes270 on each horse may be determined usingequation102; the current AC total of win bets on all horses272 may be determined usingequation104; the AC group-participantwin bet pool274 may be determined usingequation106; the current ACgroup bet pool276 may be determined usingequation100; and the allocation of the AC group bet pool, indicated as278, may be determined usingequation110.
• In addition, as discussed above, the payouts and profits shown in payout table200A may be determined based on stakes table202 using one or more calculations shown inFIGS. 3A and 3B. First, the various payouts and profits calculated with or after take-out, as indicated alongrow204A, may be determined using one or more calculations shown inFIGS. 3A. For example, the total stake on all horses (before take-out),210A, may be determined usingequation136. The total AC stake onHorse #1,212A, may be determined usingequation112, for example. The total AC win bet payout ifHorse #1 were to win,214A, may be determined using eitherequation120A orequation120B, for example. The AC payout per win bet unit currency ifHorse #1 were to win,216A, may be determined using eitherequation124A or124B, for example. In the example shown inFIG. 4A, the AC payout per win bet unit currency is defined as the AC payout per dollar wagered on a win bet onHorse #1. The total AC win bet profit ifHorse #1 were to win,218A, may be determined usingequation122, for example. The total AC group bet payout ifHorse #1 were to win,220A, may be determined using eitherequation114A or114B, for example. The AC payout per group bet unit currency ifHorse #1 were to win,222A, may be determined using eitherequation118A or118B, for example. In the example shown inFIG. 4A, the AC payout per group bet unit currency is defined as the payout per dollar wagered on thegroup bet24. Finally, the total AC group bet profit ifHorse #1 were to win,224A, may be determined usingequation116, for example.
• Similarly, the various payouts and profits calculated without or before take-out, as indicated alongrow206A, may be determined using one or more calculations shown inFIGS. 3B. For example, the total BC stake onHorse #1,212A, may be determined usingequation138. The total win bet payout ifHorse #1 were to win,214A, may be determined using eitherequation146A or146B, for example. The payout per win bet unit currency ifHorse #1 were to win,216A, may be determined using eitherequation150A or150B, for example. In the example shown inFIG. 4A, the payout per win bet unit currency is defined as the payout per dollar wagered on a win bet onHorse #1. The total win bet profit ifHorse #1 were to win,218A, may be determined using equation148, for example. The total group bet payout ifHorse #1 were to win,220A, may be determined using eitherequation140A or140B, for example. The payout per group bet unit currency ifHorse #1 were to win,222A, may be determined using eitherequation144A or144B, for example. In the example shown inFIG. 4A, the payout per group bet unit currency is defined as the payout per dollar wagered on thegroup bet24. Finally, the total group bet profit ifHorse #1 were to win,224A, may be determined usingequation142, for example.
• In this manner, the various payouts and profits included in payout table200A may be determined for situations both with and without take-out. As discussed above, the various payouts and profits included in payout table200A are relevant in the event thatHorse #1 wins the race.FIGS. 4B, 4C,4D and4E illustrate payout tables200B,200C,200D and200E, respectively, which indicate the relevant payouts and profits in the event thatHorse #2,Horse #3,Horse #4 orHorse #5, respectively, wins the race.
• In view ofFIGS. 4A, 4B,4C and4E, it can be seen that the potential total group bet payout (indicated as220A,220B,220C and220E, respectively) is the same ($4,000 without take-out and $3,400 with a 15% take-out rate) if any of the horses covered by the group bet24 (Horses #1, #2, #3 and #5) win the race. However, as shown inFIG. 4D, it can be seen that the potential totalgroup bet payout220D if the favorite horse (Horse #4) wins is zero. It should be understood that in some alternative embodiments, the potential total group bet payout may not be different depending on which of the grouped participants wins the event.
• FIG. 4F illustrates a payout table240 which includes the potential after-commission payouts and profits for each of the five horses as determined above with reference toFIGS. 4A through 4E. In other words, table240 combines the after-commission rows shown inFIGS. 4A through 4E asrows204A,204B,204C,204D and204E.
• Example Operation ofBet Management System10
• FIG. 5 is a flowchart illustrating an example method of receiving, managing, and paying win bets22 and group bets24 in accordance with an embodiment of the present invention. Atstep300, win bets22 are received from one ormore clients20 via one or more betting system interfaces14, such as described above with reference toFIG. 1. For example, in the example horse race discussed above with reference toFIGS. 4A through 4F, assume various win bets22 are received which create the win bet stakes for each horse shown incolumn254 ofFIG. 4A. Atstep302, group bets24 are received from one ormore clients20 via one or more betting system interfaces14, such as described above with reference toFIG. 1. For example, in the example discussed above, assume various wagers are received on the group bet24 coveringHorses #1, #2, #3 and #5 which creates a before-commission group bet pool260 of $2,000 as shown inFIG. 4A. In some situations,steps300 and302 may be occur simultaneously, or may at least partially overlap.
• Each win bet22 or group bet24 received atsteps300 and/or302 may be stored atstep304, such as withinmemory40, for example. A take-out (commission) rate may be applied to each receivedwin bet22 and group bet24 atstep306, such as described above with reference toFIG. 4A. For example, regarding win bets22, a take-out rate of 15% may be applied to receivedwin bets22 shown incolumn254 ofFIG. 4A to generate the after-commission win bet stakes for each horse shown incolumn270 ofFIG. 4A. Similarly, a take-out rate of 15% may be applied to each group bet24, or to the group bet pool260, to generate the after-commissiongroup bet pool276 of $1,700, as shown inFIG. 4A.
• Atstep308, each receivedgroup bet24 may be divided and allocated among all participants covered by the group bet24, or all grouped participants, such that the potential payout for the group bet24 is related to the odds on the favorite participant, such as described above with reference toFIGS. 1 and 4A. For example, the after-commissiongroup bet pool276 may be divided an allocated as shown incolumn278 ofFIG. 4A.
• Atstep310, various odds, payouts and/or profits for some or all received and/or stored win bets22, such as variouscurrent odds50 or various payouts and profits shown inFIGS. 4A through 4F, for example, may be determined by bettingsystem platform16. For example, in the example discussed above, various win bet payouts and profits shown in table200A ofFIG. 4A (and similarly for those shown in tables200B,200C,200D and200E shown inFIGS. 4A, 4B,4C and4D, respectively) may be determined atstep310, such as the total win bet payout ifHorse #1 were to win,214A; the payout per win bet unit currency ifHorse #1 were to win,216A; and the total win bet profit ifHorse #1 were to win,218A. Step310 is described in greater detail with reference toFIG. 6.
• Atstep312, various odds, payouts and/or profits for some or all received and/or stored group bets24, such as variouscurrent odds50 or various payouts and profits shown inFIGS. 4A through 4F, for example, may be determined by bettingsystem platform16. For example, in the example discussed above, various group bet payouts and profits shown in table200A ofFIG. 4A (and similarly for those shown in tables200B,200C,200D and200E shown inFIGS. 4A, 4B,4C and4D, respectively) may be determined atstep312, such as the total group bet payout ifHorse #1 were to win,220A; the payout per group bet unit currency ifHorse #1 were to win,222A; and the total group bet profit ifHorse #1 were to win,224A. Step312 is described in greater detail with reference toFIG. 7.
• At least portions ofsteps310 and312 may be performed simultaneously. In addition, in some embodiments,steps310 and312 are performed in real time, substantially in real time, or at preset intervals (such as every 30 seconds, for example) as win bets22 and/or group bets24 are received by bettingsystem platform16.
• Atstep314, it is determined whether the betting pool is closed. In some embodiments, the betting pool, which includes all bets on the event to be considered in the final determination of payouts, may be closed substantially at the time of or after betting is closed on the event. For example, in some embodiments, bets which are made prior to the close of betting but are processed (at least partially) after the close of betting (such as due to processing and transmission delays, for example) may be included within the betting pool.
• If the betting pool is still open, the method may return tosteps300 through312 to receive and store additional win bets22 and/or group bets24, and to recalculate the current odds, payouts and/or profits. In this manner, bettingsystem platform16 may update the current odds, payouts and/or profits associated with thevarious bets12 associated with the event. In some embodiments, bettingsystem platform16 may perform such updates continuously and/or in real time, substantially in real time, or at preset intervals (such as every 30 seconds, for example).
• Thus, it should be understood that each time the method returns tosteps300 through312 while the betting pool remains open, the allocation of the group bet pool is recalculated atstep308 for newly receivedwin bets22 and/or group bets24. In this manner, the allocation of the group bet pool may be continuously (or at preset intervals) updated in order to provide the appropriate win bet and group bet payouts (which are determined atsteps310 and312, respectively.)
• If it is determined atstep314 that the betting pool is closed, the method proceeds to step316. Atstep316, it is determined whether any of the participants in the event will not be competing in the event, such as if a participant is scratched, withdrawn, or becomes a non-runner, for example. For example, bettingsystem platform16 may receive a notification that one or more of the participants has been withdrawn from the event prior to the start of the event. If it is determined atstep316 that one or more participants will not be competing in the event, the method may return to step308 to recalculate the allocation of the group bet pool based on the updated set of participants in the event. Otherwise, the method may proceed to step318. In an alternative embodiment, if it is determined atstep316 that one or more participants will not be competing in the event, all group bets24 may be cancelled, and refunds may be issued for such group bets24. It should be understood thatstep318 may be performed before, after, or both before and afterstep314.
• Atstep318, the results of the event are received, such as the final position of each participant in the event and whether there was a tie for any position, for example. Atstep320, win bet payouts may be distributed toclients20 who made win bets22 on the winning participant. For example, assuming in the example discussed above thatHorse #1 won the race, win bet payouts may be distributed toclients20 who made win bets22 onHorse #1, which payouts may be based on payouts determined atstep310, such as payout per win bet unit currency ifHorse #1 were to win,216A, for example. In some embodiments, win bet payouts may be distributed according to the final determination of win bet payouts made atstep310. In alternative embodiments, win bet payouts may be distributed according to a final determination of win bet payouts made after the betting closed or even after the event was completed.
• Atstep322, group bet payouts may be distributed toclients20 who made winning group bets24. For example, assuming in the example discussed above thatHorse #1 won the race, the group bet24 is a winning bet, and thus group bet payouts may be distributed to allclients20 who wagered on thegroup bet24. Such group bet payouts may be based on payouts determined atstep312, such as payout per group bet unit currency ifHorse #1 were to win,222A, for example. In some embodiments, group bet payouts may be distributed according to the final determination of group bet payouts made atstep312. In alternative embodiments, group bet payouts may be distributed according to a final determination of group bet payouts made after the betting closed or even after the event was completed. In some situations,steps320 and322 may be occur simultaneously, or may at least partially overlap.
• FIG. 6 is a flowchart illustrating an example method of determining various odds, payouts and/or profits for win bets22, such as described above with reference to step314 shown inFIG. 5. This method may be used to determining various odds, payouts and/or profits for win bets22 associated with each participant in an event. For example, in the example discussed above, the method may be used to determine the payouts for win bets22 made on each of the five horses. Atstep340, a participant in the set of participants in the event is selected. For example, in the example discussed above,Horse #1 may be selected first, and steps342 through350 may then be performed to determine the total win bet payout for win bets22 made onHorse #1.
• Atstep342, the total after-commission (AC) stake on all non-selected participants is determined. For example,equation112 shown inFIG. 3B may be used to determine the total stake of each non-selected participant, and the total stake of each non-selected participant may be added together. In the example discussed above, the total after-commission (AC) stake on all non-selected participants is the total AC stake onHorses #2, 3, 4 and 5, which equals $10,710, as determined by adding the win bet and group bet stakes forHorses #2, 3, 4 and 5, as shown incolumns270 and278 of table202 shown inFIG. 4A.
• Atstep344, the total AC stake on the selected participant is determined, such as usingequation112 shown inFIG. 3B. In the example discussed above, the total AC stake onHorse #1 is $1,190, as shown incolumn212A of table200A shown inFIG. 4A. The total AC win bet stake on the selected participant is determined atstep346. In the example discussed above, the total AC win bet stake onHorse #1 is $850, as shown incolumn270 of table202 shown inFIG. 4A.
• Atstep348, the total AC win bet payout for the selected participant is determined, such as using eitherequation120A or120B shown inFIG. 3B. In the example discussed above, the total AC win bet payout forHorse #1 is $8,500, as shown incolumn214A of table200A shown inFIG. 4A.
• Atstep350, the AC payout per win bet unit currency for the selected participant is determined, such as using eitherequation124A or124B shown inFIG. 3B. This may comprise, for example, determining the payout per one dollar wagered on a win bet on the selected participant.
• Atstep352, it is determined whether there are any more participants in the set of participants in the event. If so, the method returns to repeatsteps340 through350 for each remaining participant. If not, the method ends. For example, in the example discussed above,340 through350 are repeated forHorses #2, 3, 4 and 5 to determine the payouts for win bets22 made on each of theHorses #2, 3, 4 and 5.
• FIG. 7 is a flowchart illustrating an example method of determining various odds, payouts and/or profits for group bets24, such as described above with reference to step318 shown inFIG. 5. For example, in the example discussed above, the method may be used to determine the payouts for group bets24. Atstep360, a participant in the set of participants in the event is selected.Steps362 through370 are then performed, as discussed below, to determine the group bet payout if the selected participant were to win the event. For example, in the example discussed above,Horse #1 may be selected first atstep360 to determine (atsteps362 to370) the group bet payout ifHorse #1 were to win the race.
• Atstep362, the total after-commission (AC) stake on all non-selected participants is determined. For example,equation112 shown inFIG. 3B may be used to determine the total stake of each non-selected participant, and the total stake of each non-selected participant may be added together. In the example discussed above, the total after-commission (AC) stake on all non-selected participants is the total AC stake onHorses #2, 3, 4 and 5, which equals $10,710, as determined by adding the win bet and group bet stakes forHorses #2, 3, 4 and 5, as shown incolumns270 and278 of table202 shown inFIG. 4A.
• Atstep364, the total AC stake on the selected participant is determined, such as usingequation112 shown inFIG. 3B. In the example discussed above, the total AC stake onHorse #1 is $1,190, as shown incolumn212A of table200A shown inFIG. 4A. The AC portion of the group bet allocated to the selected participant (such as atstep312 shown inFIG. 5) is determined atstep366. In the example discussed above, the AC portion of the group bet allocated toHorse #1 is $340, as shown incolumn278 of table202 shown inFIG. 4A.
• Atstep368, the total AC group bet payout if the selected participant were to win the event is determined, such as using eitherequation114A or114B shown inFIG. 3B. In the example discussed above, the total AC group bet payout ifHorse #1 were to win the race is $3,400, as shown incolumn220A of table200A shown inFIG. 4A.
• Atstep370, the AC payout per group bet unit currency for the selected participant is determined, such as using eitherequation118A or118B shown inFIG. 3B. This may comprise, for example, determining the payout per one dollar wagered on thegroup bet24.
• Atstep372, it is determined whether there are any more participants in the set of participants in the event. If so, the method returns to repeatsteps360 through370 for each remaining participant. If not, the method ends. For example, in the example discussed above,360 through370 are repeated forHorses #2, 3, 4 and 5 to determine the payouts for group bets24 if each of theHorses #2, 3, 4 and 5 were to win the race.
• It should be understood that in various embodiments, the steps of the methods shown inFIGS. 5, 6 and7 may be performed in any suitable order and may overlap in whole or in part without departing from the scope of the present invention. In addition, various steps and methods shown inFIGS. 5, 6 and7 may be performed in serial or parallel, notwithstanding the example representations shown inFIGS. 5, 6 and7. For example, as discussed above, in some embodiments,steps310 and312 shown inFIG. 5 may be performed afterstep314. As another example, steps320 and322 shown inFIG. 5 may be performed in series or in parallel without departing from the scope of the invention.
• Group Bets Defined After Close of Betting
• As discussed above, the group of participants covered by a particular group bet24 is undefined until some time after the group bet24 is received from aclient20. For example, a particular group bet24 may comprise a bet against one or more favorite participants in a race event, where the one or more favorite participants are not determined until some point after the group bet24 is placed by aclient20, such as after betting on the race has been closed, for example. Thus, the group bet24 may cover all of the participants in the race event excluding one or more favorite participants, at least one of which may change one or more times between the time that the group bet24 is placed by theclient20 and the time at which the favorite participants are determined, as discussed below.
• The current favorite participant at any particular point in time may be the participant on which the greatest total amount has been wagered to win the race at that particular point in time. Thus, the current favorite participant may change over time as various amounts are wagered on the participants in the race event. For example, after a number of wagers have been placed on a particular horse race,horse #3 may be the current favorite (i.e., the total amount wagered onhorse #3 is greater than the total amount wagered on any other horse in the race). Suppose after some time, the total amount wagered onhorse #5 exceeds the total amount wagered on horse #3 (as well as the amount wagered on each other horse in the race).Horse #5 thus becomes the new current favorite.
• To illustrate this type of group bet24, in the ten-horse race discussed above, agroup bet24 may be available that comprises a bet against the “eventual favorite” horse, where the “eventual favorite” horse is the horse determined to be the favorite after considering all (or substantially all) of the bets received for the race. Thus, the eventual favorite horse that is excluded from the group bet24, and thus the group of horses covered by the group bet24, are undefined until the close of betting or some time after the close of betting on the race. As discussed above, the current favorite horse may change one or more times between the time that betting on the race opens and the determination of the eventual favorite horse. Thus, for example, suppose aclient20 places such agroup bet24 at a point when the favorite ishorse #4. However, by the close of betting on the race,horse #7 has become the favorite horse in the race (i.e. the “eventual favorite” horse), based on all (or substantially all) of the bets received for the race. Thus, the favorite horse that is excluded from theclient20's group bet24 is defined ashorse #7, and the group of horses covered byclient20's group bet24 is defined to include horses #1-#6 and #8-#10 or any subset thereof. Thus,client20 wins the group bet24 if any of the horses covered by his or her group bet24 (namely, appropriate ones, or all, of horses #1-#6 and #8-#10) wins the race, but loses the group bet24 ifhorse #7 wins the race.
• In some embodiments, particular group bets24 may comprise a bet against more than one favorite participant in a race event, where these favorite participants are not determined until some point after the group bets24 are placed. For example, a particular group bet24 may comprise a bet against the top two favorites in a race, such as discussed below in the example method ofFIG. 8. As another example, a particular group bet24 may comprise a bet against the top three favorites in a race.
• FIG. 8 is a flowchart illustrating an example method of receiving, managing, and paying agroup bet24 on a horse race covering a group of horses that is undefined until after the close of betting on the race in accordance with an embodiment of the present invention. For exemplary purposes only, the following discussion regards an example horse race having eight horses, Horses #1-#8. Atstep400, win bets22 on Horses #1-#8 are received from one ormore clients20 via one or more betting system interfaces14, such as described above with reference toFIG. 1. Each win bet22 received atstep400 may be stored atstep402, such as withinmemory40, for example. Atstep404,current odds data50, such ascurrent pool data52,current odds data54 and/orpotential payout data56, is determined, updated and/or otherwise managed. For example,potential payout data56 for win bets22 on each Horse #1-#8 to win the race, as well as for one or more different group bets24, may be updated periodically or after each receivedwin bet22. Atstep406,current odds data50, such as currentpotential payout data56, for example, may be communicated or made available toclients20 via one or more betting system interfaces14 in real time or substantially in real time.
• Atstep408, group bets24 are received from one ormore clients20 via one or more betting system interfaces14, such as described above with reference toFIG. 1. In this embodiment, each group bet24 comprises a bet against the eventual top two favorite horses, where the eventual top two favorite horses are the two horses determined to be the top two favorites after considering all (or substantially all) of the win bets22 and/or group bets24 received for the race. It should be understood that the group bet24 may exclude any suitable number of participants. Thus, at the time that each group bet24 is received, the two horses that are excluded from the covered group, and thus the group of horses that are covered by the group bet24, are undefined. In some situations,steps400 and408 may occur simultaneously, or may at least partially overlap. Each group bet24 received atstep408 may be stored atstep410, such as withinmemory40, for example.
• Atstep412, it is determined whether the betting for the race is closed. In some embodiments, the betting for the race may close at some time shortly before the start of the race. If betting for the race is still open, the method may return tosteps400 through410 to receive and store additional win bets22 and/or group bets24, and to update the current odds, payouts and/or profits associated with the various bets associated with the race. Alternatively, if it is determined atstep412 that the betting for the race is closed, the method proceeds to step414.
• Atstep414, it is determined whether any of the horses in the event will not be competing in the event, such as if a horse is scratched, withdrawn, or becomes a non-runner, for example. For example, bettingsystem platform16 may receive a notification that one or more of the horses has been withdrawn from the event prior to the start of the event. Otherwise, the method may proceed to step416.
• Atstep416, the eventual top two favorite horses are determined, which are the top two favorite horses based on considering all (or substantially all) of the win bets22 and/or group bets24 received for the race. In some embodiments, the eventual top two favorite horses are the two horses having the highest total amount of money wagered on such horses considering all (or substantially all) of the win bets22 received for the race. For example, if it is determined based on all (or substantially all) of the win bets22 received for the race that of all the horses in the race, the total amount of money wagered onHorse #2 was the highest of any horse, and the total amount of money wagered onHorse #5 was the second highest of any horse,Horses #2 and #5 are determined to be the eventual top two favorite horses. As discussed above,Horses #2 and #5 may not have been the top two favorites throughout the period of betting on the race. In other embodiments, the eventual top two favorite horses are the two horses having the highest total amount of money wagered on such horses considering all (or substantially all) of the win bets22 and/or other types of bets12 (which may include various group bets24, for example) received for the race.
• Atstep418, the group of horses covered by the received group bets24 are defined based at least on the horses determined atstep416. In particular, the group of horses covered by the received group bets24 are defined by excluding the eventual top two favorite horses determined atstep416 from the plurality of horses that participated in the race. Thus, in the example discussed above, the group of horses covered by the received group bets24 is defined atstep416 as including all of Horses #1-#8 except for the eventual top two favorite horses,Horses #2 and #5. Thus, the group of horses covered by the received group bets24 includesHorses #1, #3-#4, and #6-#8.
• Atstep420, the results of the race are received, such as the final position of each horse in the race and whether there was a tie for any position, for example.Steps418 and420 may occur in either order and/or at least partially simultaneously. Atstep422, a take-out (commission) rate may be applied to each received and stored win bet22 and group bet24, such as described above with reference to step306 ofFIG. 5, for example. Atstep424, each receivedgroup bet24 may be divided and allocated among all horses covered by the group bet24 (namely,Horses #1, #3-#4, and #6-#8) as described above with reference to step308 ofFIG. 5, for example. Atstep426, various payouts and/or profits may be determined for some or all received and stored win bets22, such as described above with reference to step310 ofFIG. 5, for example. For example, payouts may be determined for each win bet22 placed on the winning horse. Atstep428, various payouts and/or profits may be determined for some or all received and stored group bets24 if any of the horses covered by the group bet24 (namely,Horses #1, #3-#4, and #6-#8) won the race, such as described above with reference to step312 ofFIG. 5.
• Atstep430, win bet payouts may be distributed toclients20 who made win bets22 on the winning participant, such as described above with reference to step320 ofFIG. 5, for example. Atstep432, if the group bet24 was a winning bet (i.e., if any ofHorses #1, #3-#4, and #6-#8—won the race), group bet payouts may be distributed toclients20 who placed group bets24, such as described above with reference to step322 ofFIG. 5, for example.
• It should be understood that in various embodiments, the steps of the method shown inFIG. 8 may be performed in any suitable order and may overlap in whole or in part without departing from the scope of the present invention. In addition, various steps shown inFIG. 8 may be performed in serial or parallel, notwithstanding the example representations shown inFIG. 8.
• A Group Bet Having a Payout Fixed at the Time the Group Bet is Received
• As discussed above, in some embodiments, payouts for each group bet24 for an event may be determined—and fixed—based on odds determined for one or more participants in the event at the time (or substantially at the time) that group bet24 is received from, or placed by, aclient20. Thus, the potential payout for agroup bet24 may be essentially locked in when the group bet24 is placed.
• FIG. 9 is a flowchart illustrating an example method of receiving, managing, and paying group bets24, each having a potential payout determined and fixed at the time that group bet24 is placed, in accordance with an embodiment of the present invention.
• For exemplary purposes only, the following discussion regards an example horse race having seven horses, Horses #1-#7, in which agroup bet24 againstHorse #3 is offered (i.e., the group bet24 covers Horses #1-#2 and #4-#7). Atstep500, win bets22 on Horses #1-#7 are received from one ormore clients20 via one or more betting system interfaces14, such as described above with reference toFIG. 1. Each win bet22 received atstep500 may be stored atstep502, such as withinmemory40, for example.
• Atstep504,current odds data50, such ascurrent pool data52,current odds data54 and/orpotential payout data56, is determined, updated and/or otherwise managed. For example,potential payout data56 for win bets22 on each Horse #1-#7 to win the race, as well as for one or more different group bets24, may be updated periodically or after each receivedwin bet22. Atstep506,current odds data50, such as currentpotential payout data56 for example, may be communicated or made available toclients20 via one or more betting system interfaces14 in real time or substantially in real time.
• Atstep508, a first client20aplaces a $10 group bet24a(covering Horses #1-#7 except Horse #3). At the time that first client20aplaces the group bet24a,which time may be referred to as “Time 1,” the potential payout for the first client20a's group bet24ais determined, and fixed, based on the amounts that have been wagered on and/or allocated to each of Horses #1-#7 in the race atTime1. Thus, the potential payout for first client20a's group bet24ais determined based onbets12 that have been received prior toTime1.FIG. 10A illustrates tables540 and542 indicating total amounts wagered and potential payouts forvarious bets12 at the time,Time1, that first client20aplaces group bet24a.Regarding table540,column544 indicates the total amounts wagered on win bets22 for each of Horses #1-#7 atTime1;column546 indicates the total amount—i.e., the group bet pool—wagered on the group bet24 againstHorse #3 atTime1, including the $10 group bet24aplaced by client20a;andcolumn548 indicates the allocation of the group bet pool among the horses covered by the group bet24 atTime1. The allocation of the group bet pool indicated incolumn548 may be determined according toequation136 shown inFIG. 3B. Columns544-548 indicate amounts determined without accounting for a take-out, while columns550-554 indicate amounts determined after a 10% take-out or commission (the 10% value for the take-out is used merely for exemplary purposes). In particular,column550 indicates the total amounts wagered on win bets22 for each of Horses #1-#7 atTime1, accounting for the 10% take-out;column552 indicates the total amount—i.e., the group bet pool—wagered on the group bet24 againstHorse #3 atTime1, accounting for the 10% take-out; andcolumn554 indicates the allocation of the group bet pool among the horses covered by the group bet24 atTime1, accounting for the 10% take-out. The after-take-out allocation of the group bet pool indicated incolumn554 may be determined according toequation110 shown inFIG. 3A.
• Regarding table542,column560 indicates the total pool ofbets12 received on the race atTime1, including win bets22 and group bets24;column562 indicates the potential payout per $1 wagered on group bet24aplaced atTime1 ifHorse #3 wins the race ($0 payout); andcolumn564 indicates the potential payout per $1 wagered on group bet24aplaced atTime1 if any of the horses covered by group bets24 (Horses #1-#2 and #4-#7) wins the race. The before-take-out value indicated in column564 ($1.57 return/$1 bet) may be determined according toequations144A or144B shown inFIG. 3B, and the after-take-out value indicated in column564 ($1.41 return/$1 bet) may be determined according toequations118A or118B. Thus, based oncolumn564, and accounting for a 10% take-out, the potential payout for the $10 group bet24aplaced by first client20awould be $14.10 [($1.41 return/$1 bet)*$10 bet)] if any of the horses covered by group bet24a(Horse #1-#2 and #4-#7) wins the race. This potential payout of $14.10 for group bet24ais locked in at the time,Time1, that first client20aplaces group bet24a.Referring back toFIG. 9, the group bet24areceived from first client20aatstep508, and described with respect toFIG. 10A, may be stored atstep510, such as withinmemory40, for example.
• Atstep512, at some later time during the period of betting on the race, which time may be referred to as “Time 2,” a second client20bplaces a $10 group bet24b(covering Horses #1-#7 except Horse #3). AtTime2, the potential payout for second client20b's group bet24bis determined, and fixed, based on the amounts that have been wagered on and/or allocated to each of Horses #1-#7 in the race atTime2. Thus, the potential payout for second client20b's group bet24bis determined based onbets12 that have been received prior toTime2, includingbets12 placed between Time1 (when group bet24awas placed by first client20a) andTime2.
• FIG. 10B illustrates tables570 and572 indicating total amounts wagered and potential payouts forvarious bets12 at the time,Time2, that second client20bplaces group bet24b.Regarding table570,column574 indicates the total amounts wagered on win bets22 for each of Horses #1-#7 atTime2;column578 indicates the total amount—i.e., the group bet pool—wagered on the group bet24 againstHorse #3 atTime2, including the $10 group bet24aplaced by client20a;andcolumn578 indicates the allocation of the group bet pool among the horses covered by the group bet24 atTime2. The allocation of the group bet pool indicated incolumn578 may be determined according toequation136 shown inFIG. 3B. Columns574-578 indicate amounts determined without accounting for a take-out, while columns580-584 indicate amounts determined after a 10% take-out or commission (the 10% value for the take-out is used merely for exemplary purposes). In particular,column580 indicates the total amounts wagered on win bets22 for each of Horses #1-#7 atTime2, accounting for the 10% take-out;column582 indicates the total amount—i.e., the group bet pool—wagered on the group bet24 againstHorse #3 atTime2, accounting for the 10% take-out; andcolumn584 indicates the allocation of the group bet pool among the horses covered by the group bet24 atTime2, accounting for the 10% take-out. The after-take-out allocation of the group bet pool indicated incolumn584 may be determined according toequation110 shown inFIG. 3A.
• Regarding table572,column590 indicates the total pool ofbets12 received on the race atTime2, including win bets22 and group bets24;column592 indicates the potential payout per $1 wagered on group bet24bplaced atTime2 ifHorse #3 wins the race ($0 payout); andcolumn594 indicates the potential payout per $1 wagered on group bet24bplaced atTime2 if any of the horses covered by group bets24 (Horses #1-#2 and #4-#7) wins the race. The before-take-out value indicated in column564 ($1.44 return/$1 bet) may be determined according toequations144A or144B shown inFIG. 3B, and the after-take-out value indicated in column564 ($1.30 return/$1 bet) may be determined according toequations118A or118B. Thus, based oncolumn594, and accounting for a 10% take-out, the potential payout for the $10 group bet24bplaced by second client20bwould be $13.00 [($1.30 return/$1 bet)*$10 bet)] if any of the horses covered by group bet24b(Horse #1-#2 and #4-#7) wins the race. This potential payout of $13.00 for group bet24bis locked in at the time,Time2, that second client20bplaces group bet24b.Referring back toFIG. 9, the group bet24breceived from second client20batstep512, and described with respect toFIG. 10B, may be stored atstep514, such as withinmemory40, for example.
• Atstep516, win bets12 on Horses #1-#7 and group bets24 againstHorse #3 may continue to be received fromclients20. The potential payout for each particular receivedgroup bet24 may be determined based on thebets12 received prior to that particular group bet24, such as described above regarding particular group bets24aand24b.
• Atstep518, betting for the race is closed. In some embodiments, betting for the race may be closed at some time shortly before the start of the race. Atstep520, the results of the race are received, such as the final position of each of Horses #1-#7 in the race and whether there was a tie for any position, for example.
• Atstep522, various payouts and/or profits may be determined for received and stored win bets22, such as described above with reference to step310 ofFIG. 5, for example. For example, payouts may be determined for each win bet22 placed on the winning horse. Atstep524, win bet payouts may be distributed toclients20 who made win bets22 on the winning participant, such as described above with reference to step320 ofFIG. 5, for example.
• Atstep526, it is determined whether groups bets24 are winning bets based on whetherHorse #3 was the winning horse. IfHorse #3 was the winning horse, groups bets24 are losing bets and no payouts are distributed for group bets24, as indicated atstep528. If any of the horses covered by group bets24—namely, Horses #1-#2 and #4-#7—was the winning horse, groups bets24 are winning bets and group bet payouts previously determined for each receivedgroup bet24 may be distributed to clients20 (including first client20aand second client20b) who placed group bets24, as indicated atstep530. In particular, a payout of $14.10 may be distributed to first client20aand a payout of $13.00 may be distributed to first client20a
• It should be understood that in various embodiments, the steps of the method shown inFIG. 9A may be performed in any suitable order and may overlap in whole or in part without departing from the scope of the present invention. In addition, various steps shown inFIG. 9A may be performed in serial or parallel, notwithstanding the example representations shown inFIG. 9A.
• FIG. 11 is a table600 illustrating an example allocation of participants among multiple groups for agroup bet24 associated with a particular event. Table600 includes arow602 that identifies participants, such as Horses #1-#8 in an 8-horse race, and row604 that identifies the allocation of Horses #1-#8 among multiple groups, such as groups A and B. According to the example allocation of participants illustrated in table600, group A comprisesHorses #3 and #6, while group B comprisesHorses #1, #2, #5, #7, and #8.Horse #4 is not allocated to either group A or group B. In this example, it is determined that the field of Horses #1-#8 are placed into three different categories.Horse #4 is the favorite to win the particular horse race and remains aseparate win bet22.Horses #3 and #6 are the two next best contenders to win the race, and are placed in group A. The rest of the field may be considered longshots to win the race and are placed in group B.
• The characterization of a particular participant as a favorite, contender, or longshot is based upon the odds of that particular participant to win the race as determined by the betting public. The allocation of a participant as the favorite, as a member of group A, or as a member of group B may be performed according to the odds of each participant to win the race at the time (or substantially at the time) the group bet24 is made, or may be performed according to the odds of each participant to win the race at the close of betting for a particular event. For example,Horse #4 may be the favorite at the time the group bet24 is placed (e.g., the morning line favorite), or the eventual favorite at the close of betting, depending upon particular embodiments. Similarly,Horses #3 and #6 may be determined to be the next two contenders, and therefore allocated to group A, at the time the group bet24 is made or at the close of betting.Horses #1, #2, #5, #7, and #8 may be determined to be the longshots, and therefore allocated to group B, at the time the group bet24 is made or at the close of betting.
• In the embodiment where the allocation of participants in the particular groups A or B remains undefined until the odds to win the race are determined for the participants at the close of betting, group A may be represented to the betting public as a group of horses that will not include the eventual favorite in the race, but that will include two or more contenders to win the race, and group B may be represented to the betting public as a group of horses that will not include the eventual favorite in the race or the top two or three contenders, but that will include the remaining horses in the field, or the longshots to win the race.
• A group bet24 for this race is a bet on every horse within a chosen group, A or B. Therefore, when placing agroup bet24 on this race, theclient20 chooses a particular group A or B. Theclient20 need not be concerned with which member of a particular group wins the race because the payout on the group bet24 will be the same so long as any one of the horses in the chosen group is the winning horse.
• As described above, the group bet24 is part of the overall betting pool for the particular event. The amount of the group bet24 is allocated among the participants in the chosen group in proportion to the amount bet on each member of the group to win. For example, more money from a particular group bet24 would be allocated to a horse with 10-1 odds to win a race than on a 30-1 longshot to win the race. The allocation of the amount of the group bet24 may be performed according to the odds determined for one or more participants at the time (or substantially at the time) that the particular group bet24 is placed by aclient20. Thus, the potential payout for agroup bet24 may be essentially locked in when the group bet24 is placed. Alternatively, payouts for agroup bet24 for an event may be determined based on the final odds determined for participants in the event (e.g., the odds determined for the participants after betting has closed on the event). Thus, the potential payouts for group bets24 may change over time during the period of betting on the event as win bets22 and group bets24 continue to be received for the event.
• Although the allocation of participants illustrated inFIG. 11 is detailed with respect to two groups, it should be understood that it can include any number of groups that each comprise any suitable number and combination of participants in an event. Moreover, the allocation of particular types of participants, such as a favorite, contender, or longshot, in particular groups may be adjusted from the example provided herein without limitation.
• The payout for the group bet24 on any particular one of the multiple groups, such as one of groups A or B, is calculated as described above with regard toFIGS. 1-10. In particular, the payout for the group bet24 is substantially the same no matter which member of the group wins, and will vary based on the cumulative odds of the members of the group. In general, for example, a group with lower priced horses will pay less than a group with higher priced horses. The payout is calculated by multiplying the amount bet on the winning horse by the horse's odds to win the race (either final odds or odds at the time of the bet depending upon particular embodiments). However, with the group bet24, the amount actually bet on the winning horse is a fraction of the amount of the group bet24 placed by theclient20, after it has been allocated across all of the members of the chosen group. For example, $0.42 may be allocated to the winning horse with 10-1 odds, resulting in agroup bet payout24 of $4.20.
• Although embodiments of the invention and their advantages are described in detail, a person skilled in the art could make various alterations, additions, and omissions without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (27)

1. A method for managing bets, comprising:

receiving at least one group bet for an event having a set of participants, wherein a first group comprises a first subset of the participants and a second group comprises a second subset of the participants, the group bet comprising a bet that one of the first subset of participants will win the event;

receiving results of the event identifying a winning participant; and

determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant.

2. The method ofclaim 1, wherein the at least one group bet is received in a pari-mutuel betting system.

3. The method ofclaim 1, further comprising applying a commission rate to the at least one group bet.

4. The method ofclaim 1, wherein at least one participant in the set of participants is not included in either the first subset of participants or the second subset of participants.

5. The method ofclaim 1, wherein more than one participant in the set of participants is not included in either the first subset of participants or the second subset of participants.

6. The method ofclaim 1, wherein the first subset of participants and the second subset of participants associated with each group bet is the same for the event.

7. The method ofclaim 1, wherein only one participant is not included in either the first subset of participants or the second subset of participants.

8. The method ofclaim 1, wherein:

the first subset of the participants includes the winning participant; and

the amount of the determined group bet payout is the same regardless of which particular participant in the first subset of the participants is the winning participant.

9. The method ofclaim 1, further comprising:

receiving one or more win bets, each win bet comprising a bet that a participant selected from the set of participants will win the event; and

determining the win bets that comprise a bet on the winning participant.

10. The method ofclaim 9, wherein the amount of the group bet payout is determined based at least in part on the total amount of the win bets that comprise a bet on the winning participant.

11. The method ofclaim 9, wherein a particular participant in the set of participants is not included in the first subset of participants, and the method further comprises:

determining the odds of winning for the particular participant based at least in part on the one or more received win bets; and

wherein the amount of the group bet payout is determined based at least in part on the odds of winning for the particular participant.

12. The method ofclaim 9, wherein determining the amount of the group bet payout comprises:

selecting a participant from the first subset of participants; and

determining the total amount of the win bets that comprise a bet on any participant in the set of participants except for the selected participant.

13. The method ofclaim 9, wherein determining the amount of the group bet payout comprises allocating to each of the first subset of participants a portion of the amount of the group bet.

14. The method ofclaim 13, further comprising receiving a notification that one or more of the participants in the first subset of participants will not compete in the event; and

wherein determining the amount of the group bet payout comprises reallocating the amount of the group bet among the remaining participants in the first subset of participants.

15. The method ofclaim 13, wherein determining the amount of the group bet payout further comprises:

determining as a first amount the portion of the group bet allocated to the winning participant;

determining as a second amount the total portion of the group bet allocated among the participants in the set of participants except for the winning participant;

determining as a third amount the total amount of the win bets that comprise a bet on any of the participants in the set of participants except for the winning participant;

determining as a fourth amount the total amount of the win bets that comprise a bet on the winning participant; and

determining the amount of the group bet payout based at least on the first amount, the second amount, the third amount, and the fourth amount.

16. The method ofclaim 15, wherein determining the amount of the group bet payout comprises:

determining a fifth amount by multiplying the sum of the second amount and the third amount by the first amount;

determining a sixth amount by dividing the fifth amount by the sum of the first amount and fourth amount; and

adding the sixth amount and the first amount.

17. The method ofclaim 13, further comprising determining, for each participant in the set of participants, the total amount of the win bets that comprise a bet on that participant; and

wherein the amount of the group bet is allocated to each participant in the first subset of participants in proportion to the determined total amounts of the win bets associated with that participant.

18. The method ofclaim 13, wherein determining an amount of a win bet payout for at least a portion of the win bets that comprise a bet on the winning participant comprises:

determining as a first amount the total amount of the win bets that comprise a bet on the winning participant;

determining as a second amount the total portion of the group bet allocated among the participants in the set of participants except for the winning participant;

determining as a third amount the total amount of the win bets that comprise a bet on any of the participants in the set of participants except for the winning participant;

determining as a fourth amount the total portion of the group bet allocated to the winning participant; and

determining the amount of the payout for at least a portion of the win bets that comprise a bet on the winning participant based at least on the first amount, the second amount, the third amount, and the fourth amount.

19. The method ofclaim 18, wherein determining the amount of the payout for at least a portion of the win bets that comprise a bet on the winning participant comprises:

determining a fifth amount by multiplying the sum of the second amount and the third amount by the first amount;

determining a sixth amount by dividing the fifth amount by the sum of the first amount and fourth amount; and

adding the sixth amount and the first amount.

20. The method ofclaim 1, further comprising receiving at least one group bet comprising a bet that one of the second subset of participants will win the event.

21. The method ofclaim 1, wherein:

the set of participants comprises a first participant, a second participant, a third participant, and a plurality of remaining participants;

the first participant comprises a favorite to win the event;

the second participant and the third participant each comprise a contender to win the event;

the first group comprises the second participant and the third participant; and

the second group comprises the plurality of remaining participants.

22. The method ofclaim 1, wherein:

the set of participants comprises a first participant, a second participant, a third participant, and a plurality of remaining participants;

the first participant comprises a favorite to win the event;

the second participant and the third participant each comprise a contender to win the event;

the second group comprises the second participant and the third participant; and

the first group comprises the plurality of remaining participants.

23. The method ofclaim 1, wherein the first subset of the participants is undefined at the time the at least one group bet is received, and further comprising:

at some time after receiving the at least one group bet, identifying particular participants for the first group.

24. The method ofclaim 23, wherein the particular participants are identified for the first group based at least in part upon bets received for the event after the at least one group bet is received.

25. The method ofclaim 1, further comprising for at least one of the set of participants, determining odds of that participant winning the event at the time the group bet was received, wherein the amount of the group bet payout is further based upon the odds of winning the event determined for the at least one participant at the time the group bet was received.

26. A method for managing bets, comprising:

identifying a set of participants of an event;

identifying a first group comprising a first subset of the participants, wherein the first subset comprises a plurality of participants;

identifying a second group comprising a second subset of the participants, wherein the second subset comprises a plurality of participants;

receiving a first group bet comprising a bet that one of the first subset of participants will win the event;

receiving a second group bet comprising a bet that one of the second subset of participants will win the event;

receiving results of the event identifying a winning participant; and

determining an amount of a group bet payout for at least one of the group bets based on whether the corresponding subset of participants includes the winning participant.

27. A method of managing bets, comprising:

identifying a set of participants of an event;

identifying a first group comprising a first subset of the participants, wherein the first subset comprises a plurality of participants;

identifying a second group comprising a second subset of the participants, wherein the second subset comprises a plurality of participants;

receiving at least one group bet comprising a bet that one of the first subset of participants will win the event;

receiving results of the event identifying a winning participant; and

determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant.

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