Roberto José Guerrero Isaza (born 16 November 1958) is aColombian-American formerrace driver. He participated in 29Formula One Grands Prix, debuting on 23 January 1982, becoming the first Colombian to start a Formula One Grand Prix.
With no championship points in Formula One and no prospects to drive for a competitive team, Guerrero left at the end of the 1983 season to race in theUnited States. He had an auspicious beginning to hisIndycar racing career, winning both CART andIndianapolis 500 rookie of the year honors in 1984. His initial promise was never completely fulfilled, winning only two CART races, both in 1987. Later the same year he had a massive accident which left him in acoma for 17 days.
Of special note were Guerrero's participations in the Indianapolis 500. He came very close to winning outright on two occasions, but bad luck always kept the victory out of his grasp. In1992 he spun off on the pace lap after having qualified on thepole position. Guerrero finished runner up twice, in the top-five five times, and held the qualifying speed record from 1992 through 1996. Guerrero was also selected to participate in the 1988International Race of Champions.
Guerrero became a naturalized citizen of the United States in 1989. He and his wife have three children and reside inSan Juan Capistrano inOrange County, California.
In recent years Guerrero has returned to racing, but of a different venue. He began off-road racing at the legendary Baja 2000. He has since continued to race inBaja 1000 events and guide tours of theBaja Peninsula with Wide Open Baja.
Guerrero began his racing career in 1972 by competing inkart racing. From 1972 to 1977, he won two national championships in his nativeColombia. He also finished third in the 1975Pan American Karting Championship.
Guerrero then joined theJim Russell Racing School in 1977. In the school's six events, Guerrero managed to win five of the races and finished second in the other race.
Guerrero began competing inBritish Formula Ford 1600 in1978. He took eight wins during the season.
Guerrero competed inVandervell British Formula 3 forAngila Cars in anArgo JM3-Toyota. He finished ninth in the standings with fifteen points.
Guerrero returned to the series in1980 withArgo Racing Cars in an Argo JM6-Toyota. During the season he scored five victories atThruxton Circuit (twice),Cadwell Park,Brands Hatch andOulton Park. He tied for second in the standings withKenneth Acheson, each with 95 points.
While competing inBritish Formula 3 Guerrero competed inEuropean Formula Three. He again drove forAngila Cars in an Argo JM3-Toyota. At the end of the season he scored two points to finish in 25th place in the championship.
In1981 Guerrero began competing inEuropean Formula Two forMaurer Motorsport in aMaurer MM81-BMW. He won theJochen Rindt Memorial Trophy at theThruxton Circuit. His next best finishes were a pair of fourth place finishes at theGran Premio del Mediterraneo atEnna-Pergusa and theGran Premio dell'Adriatico at the Misano Circuit and he finished seventh in the championship with 16 points.
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Guerrero began competing inFormula One in1982 forEnsign Racing, beginning the season in a No. 14Café de Colombia/Moda Caribu EnsignN180B-Ford CosworthDFV at the season-openingSouth African Grand Prix. He failed to qualify for the event due to Guerrero'sFormula Two team Maurer Motorsport and its bossWilly Maurer filing an injunction to Ensign team bossMorris Nunn and as a result Guerrero was withdrawn from the race. An official press report from Nunn stated that Guerrero was "in an inappropriate physical and mental condition to drive."[1] Guerrero returned for the following race, theBrazilian Grand Prix, in a new EnsignN181. He again failed to qualify for the race. Guerrero qualified for the third race of the season, theUnited States Grand Prix West, starting nineteenth and finished fifteenth after crashing 27 laps into the race. Ensign skipped theSan Marino Grand Prix due to theFISA–FOCA war and Guerrero then failed to qualify for theBelgian Grand Prix. At theMonaco Grand Prix Ensign's tire supplierAvon withdrew from Formula One and that left the team tireless. The team got some older tires to use for the race, but Guerrero failed to qualify.Michelin started supplying tires to the team after Monaco and Guerrero qualified for Michelin's first race for the team, theDetroit Grand Prix, starting in a respectable eleventh place. In the race Guerrero was involved in a crash six laps into the race and was credited with a nineteenth place finish. After that, Guerrero then only failed to qualify at theDutch Grand Prix and theFrench Grand Prix. Guerrero scored his best finish of 1982 (and his entire Formula One career) at theGerman Grand Prix with an 8th-place finish. At the season-endingCaesars Palace Grand Prix Guerrero qualified in 15th place. The car's engine then blew in the warm up and Guerrero missed the race. Guerrero was unranked in the championship standings due to the fact that he had scored no points.
In1983 Ensign Racing merged withTheodore Racing and as a result Guerrero began driving the No. 33Café de Colombia TheodoreN183-Ford CosworthDFV. Guerrero only failed to qualify at theMonaco Grand Prix and became more consistent in finishing races. Despite this Guerrero's best finishes were a pair of twelfth place finishes at theDutch Grand Prix and theEuropean Grand Prix. At the end of the season Guerrero again failed to score points and was as a result unranked in the championship while rookie teammateJohnny Cecotto managed to get a sixth place finish and with it one point towards the championship for himself and Theodore (although Cecotto failed to qualify four times to Guerrero's single time).
Guerrero made his Indy car debut in1984 forBignotti-Cotter Racing in the No. 9Master MechanicMarch 84C-Cosworth DFX with legendary chief mechanicGeorge Bignotti serving as Guerrero's chief mechanic. The high point of Guerrero's season was a second place finish at theIndianapolis 500 where he also shared therace's rookie of the year award withMichael Andretti. Guerrero's best finishes outside of Indianapolis were a pair of fifth place finishes at theBudweiser Cleveland Grand Prix atBurke Lakefront Airport and theMichigan 500 atMichigan International Speedway. Guerrero finished out the season eleventh in points with 52 points, only one point out of the top ten. Guerrero won the series' rookie of the year award.
In1985, Bignotti retired, and the team was reorganized asTeam Cotter with Guerrero driving their No. 9Master Mechanic/True ValueMarch 85C-Cosworth DFX. Compared to the previous season, 1985 was a disappointment highlighted by a 3rd-place finish at theIndianapolis 500 and a 4th at theStroh's 300K atLaguna Seca Raceway. The season also saw Guerrero retire out of a race twice while leading, first at theMichigan 500 atMichigan International Speedway (due to gearbox issues) and then at theMolson Indy 300 atSanair Super Speedway (due to Guerrero crashing). Guerrero finished the season seventeenth in points with 34 points.
Guerrero returned with Team Cotter in1986 to drive their No. 2True Value/Emerson Electronics March 86C-Cosworth DFX (numbered 5 at Indianapolis only). Guerrero continued his streak of impressive finishes with a fourth place inthe race. Guerrero also scored a pair of second place finishes, first at theEscort Radar Warning 200 atMid-Ohio Sports Car Course and theMiami Indy Challenge 200 atTamiami Park. In the latter, Guerrero qualified on pole position and led every lap, except the final lap due to running out of fuel and handing the win toAl Unser Jr.. Guerrero finished the season ninth in points with 87 points.
In1987 Cotter sold the team toVince Granatelli (son of former Indy car ownerAndy Granatelli) to formVince Granatelli Racing with Guerrero driving the No. 4True Value/STP March 87C-Cosworth DFX. Guerrero scored his first Indy car win at theChecker 200 atPhoenix International Raceway. In the race, Guerrero originally qualified 3rd, but the car was declared illegal, and Guerrero started 22nd (last) to charge his way up through the field to win. At theIndianapolis 500, Guerrero and Granatelli were one of the few teams to have no issues with March 87C as several teams decided to use year-old 86C models instead. In the race, Guerrero qualified fifth and was viewed as among the favorites, along with pole sitterMario Andretti and defending winnerBobby Rahal. In the race, Rahal retired after 57 laps due to ignition problems, and Guerrero was in second place behind Andretti for much of the race. On the 130th lap, a wheel came off ofTony Bettenhausen's car, and it hit the nose of Guerrero's car and went flying into the grandstand and where it killed spectatorLyle Kurtenbach. On lap 177, Andretti started to have electrical troubles, and Guerrero took the lead. On lap 182, Guerrero came in for his final pit stop, and as he exited his pit stall, the engine stalled. Third gear had been damaged earlier in the race by the Bettenhausen incident, and the car began to get moving, only to stop just outside the pit lane. This causedAl Unser Sr. to take the lead and get a lap on Guerrero. Guerrero finally got going and unlapped himself on lap 191, and there was a caution on lap 192 for Andretti stopping on the track. On lap 196, the restart came out with six cars between Unser and Guerrero. Guerrero was unable to get by Unser and ended up finishing second to one of the year-old March 86Cs to be pressed into race service.
After his near-win in Indianapolis, subsequently, Guerrero scored four pole positions at theMiller American 200 in Honor of Rex Mays at theMilwaukee Mile, theBudweiser/G.I. Joe's 200 presented by Texaco atPortland International Raceway,Budweiser Grand Prix of Cleveland atBurke Lakefront Airport, and the Escort Radar Warning 200 atMid-Ohio Sports Car Course. In the latter Guerrero scored his second (and unbeknownst at the time, last) IndyCar victory. Just days after his Mid-Ohio victory, Guerrero was testing at the Indianapolis Motor Speedway, when he crashed and was hit by a tire off of his car. Guerrerowas in a coma for seventeen days and did not compete in any more races in 1987. Guerrero finished a career-best fourth in points with 106 points, despite missing the final three races of the season.
Guerrero's recovery from his near-fatal accident was documented by IndyCar Medical Director,Dr. Steve Olvey, who said in his biography,Rapid Response: My Inside-Story as a Motor-Racing Life-Saver, that he saved Guerrero's life by lowering the pressure in his brain with injections of medicines that were brand-new to the medical field and were not widely practiced yet. Somehow, his treatment worked and Guerrero's recovery, which only took less than three months, led to him studying traumatic brain injuries as his primary focus of study.
In1988 Guerrero returned with Vince Granatelli Racing and originally drove the No. 2STP/Dianetics: The Evolution of a ScienceLola T88/00-Cosworth DFX. At the season-openingChecker 200 atPhoenix International Raceway Guerrero qualified and finished in second place. However, the remainder of the season was mostly a disappointment, such as theIndianapolis 500 where Guerrero qualified twelfth and did not even make it through the first lap due to being collected by Scott Brayton. The team even attempted to use a year-old March 87C at select races to no avail. Guerrero's only top tens after Indianapolis were theQuaker State 500 at Pocono International Raceway in the Lola and theBosch Spark Plugs Grand Prix atNazareth Speedway in the March. After starting tenth at Long Beach Guerrero's best start was at Nazareth, where he started eleventh. At the end of the season Guerrero finished twelfth in points with 40 points, despite skipping two races.
Following the 1988 season Guerrero and Granatelli split for1989. Guerrero joinedAlex Morales Motorsports, who was at the time the factory (and only) team using Alfa Romeo engines. Guerrero drove the No. 21Alfa Romeo March 89CE-Alfa Romeo Indy V8. The engine ended up being not ready for the start of the season and the team missed the first four races of the year, including theIndianapolis 500. Guerrero was even offered the chance to drive an extra car forTruesports. Guerrero had to decline due to his contract with Alfa Romeo. The team managed to first compete at theValvoline Detroit Grand Prix on theStreets of Detroit. In the race Guerrero was able to finish eighth. The remainder of the season saw Guerrero score only one additional point due to a twelfth place finish at the Red Roof Inns 200 atMid-Ohio Sports Car Course. Guerrero would finish 23rd in points with 6 points.
Prior to1990 Morales Motorsports closed down andPatrick Racing took over the Alfa Romeo project with Guerrero driving the No. 20Miller Genuine Draft March 90CA-Alfa Romeo Indy V8. Guerrero managed to qualify for theIndianapolis 500, starting 28th and finishing 23rd due to suspension damage. The team then switched to using aLola T90/00 starting at theMarlboro 500 atMichigan International Speedway. In the race, Guerrero finished in fifth place. At the end of the season Guerrero finished sixteenth in the points with 24 points.
In1991 Guerrero was replaced byDanny Sullivan and was left without a car to drive. At theIndianapolis 500 Guerrero drove a second car for Patrick Racing in the No. 40Sharp's Lola T91/00-Alfa Romeo Indy V8. He qualified 28th and finished thirtieth after being involved in a crash withKevin Cogan on Guerrero's 24th lap. Guerrero then drove three select races forKing Racing in the No. 26Quaker State Lola T91/00-BuickV6, scoring a best finish of fourteenth at theValvoline Detroit Grand Prix on theStreets of Detroit and theTexaco/Havoline Grand Prix of Denver at thePepsi Center. Guerrero finally drove the No. 50Fendi/Hawaiian Tropic Lola T91/00-Cosworth DFS at theMolson Indy Toronto atExhibition Place, qualifying and finishing in 18th place. Guerrero scored no points for the first time in his CART career and finished 37th in the championship.
For1992 Guerrero drove in a pair of races for the part-time team King Racing, first driving the No. 26Quaker State Lola T91/00-Buick V6 at theToyota Grand Prix of Long Beach on theStreets of Long Beach, starting fourteenth and finishing thirteenth. At theIndianapolis 500 King updated Guerrero to a Lola T92/00-Buick V6 and the number was changed to 36 (Jim Crawford began to drive the No. 26 car). During qualifying Guerrero set a new four-lap track record of 232.482 mph and a new one-lap record of 232.618 mph on the third lap. Guerrero qualified on pole position and became the first part-time driver to qualify on the pole sincePancho Carter in1985. In the race Guerrero spun out and crashed on the backstretch during the second parade lap and did not even get to start the race, being credited with 33rd (last) place. Guerrero joinedCliff Woodbury in1929 and Carter in1985 as drivers who started first in the Indianapolis 500 and finished last; they were later joined byGreg Ray in2000 andScott Sharp in2001. Guerrero finished 38th in the championship with one point.
In1993 King Racing expanded to a full-time schedule with Guerrero driving their No. 40Budweiser Lola T93/00-Ilmor-Chevrolet Indy V8 265C. At theIndianapolis 500 Guerrero qualified tenth and finished 28th after being involved in a crash withJeff Andretti after 125 laps. During the year Guerrero and King consistently qualified in the mid-pack, with a best start of fourth at theValvoline 200 atPhoenix International Raceway. Guerrero's best finish was also a fourth at theNew England 200 atNew Hampshire Motor Speedway. Following theMolson Indy Vancouver atConcord Pacific Place King released Guerrero. Guerrero finished fourteenth in the championship with 39 points (he was thirteenth in the championship at the time of his release).
In1994 Guerrero could only get a car to drive at theIndianapolis 500 withPagan Racing (the same team who owned the car thatJeff Andretti crashed into Guerrerothe previous year) in their No. 21Interstate Batteries Lola T92/00-Buick V6. The chassis was the same chassis that Guerrero drove in1992. Guerrero qualified 20th and finished 33rd (last) due to a crash after twenty laps. He scored no points and tied for 54th in the championship.
In1995 Guerrero returned with Pagan Racing in their No. 21Upper DeckReynard 94i-Ilmor-Mercedes-Benz IC108B. Guerrero first raced at theSlick 50 200 atPhoenix International Raceway, starting 25th and finishing sixteenth. The team then competed in theIndianapolis 500, where Guerrero qualified in a respectable thirteenth place and finished in twelfth place. Guerrero finished the season 33rd in the championship with one point.
In1996 Guerrero and Pagan Racing began competing full-time in the newly formed Indy Racing League with Guerrero driving the No. 21WavePhoreReynard 94i-Ford Cosworth XB, with additional sponsorship coming fromJohnny Lightning (at Disney),Newscast (at Phoenix) andPennzoil (at Indianapolis). At the season-openingIndy 200 at Walt Disney World atWalt Disney World Speedway Guerrero qualified second and finished fifth. At theDura Lube 200 atPhoenix International Raceway Guerrero qualified third and finished sixteenth due to a broken cv joint. At theIndianapolis 500 the team updated to aReynard 95i and Guerrero qualified 6th and led for a race-high 47 laps and battled for the win withTony Stewart,Arie Luyendyk,Davy Jones,Alessandro Zampedri and eventual winnerBuddy Lazier. On Guerrero's final pit stop on lap 167 he and Lazier came into the pits. While in the pits the nozzle was connected awkwardly and fuel began to spill out. The car then began to catch fire and Guerrero began to climb out of the car when it was determined to be okay to continue racing. Guerrero fell out of contention and went a lap down. On the final lap of the race, as Lazier and Jones crossed the finish line, Guerrero lost control of his car in the fourth turn and took out fourth place Zampedri (who was on the lead lap) and sixth placeEliseo Salazar (who was two laps down) and caused Zampedri to get airborne and flip. Guerrero came to a rest inside the pit lane, just past the entrance. Guerrero finished fourth in the championship with 237 points.
During the 1996 portion of the1996-1997 season Guerrero continued to drive for Pagan Racing in the No. 21 PennzoilReynard 95i-Ford Cosworth XB. At the season-openingTrue Value 200 atNew Hampshire Motor Speedway Guerrero started eighteenth and finished sixth. Guerrero then drove aReynard 94i at theLas Vegas 500K atLas Vegas Motor Speedway to start ninth and finish a season-best fourth. Starting at theIndy 200 at Walt Disney World Speedway the series began to use a different type of spec car with Guerrero driving the No. 21 PennzoilDallara IR7-NissanInfinitiQ45 for Pagan Racing. The Infiniti engine was usually slower than the competingOldsmobile engine and Guerrero's best race with the engine was thePhoenix 200 atPhoenix International Raceway, where he started tenth and finished seventh. At theIndianapolis 500 Guerrero qualified in nineteenth place and finished 27th after retiring due to a suspension failure after 25 laps with Guerrero running as high as eleventh place. Starting with theSamsonite 200 at Pikes Peak International Raceway the team switched to theOldsmobileAurora Indy V8. Guerrero's best finish with the Oldsmobile engine came at thePennzoil 200 atNew Hampshire Motor Speedway with a sixth place finish. At the season-endingLas Vegas 500K at Las Vegas Motor Speedway, Guerrero suffered a major accident on lap 201 on the backstretch. Guerrero flipped coming off of the second turn and flipped into the grass area next to the racetrack. He climbed out of his destroyed car just moments after the accident finished. Guerrero finished the season ranked seventh in points with 221 points.
In1998 Pagan Racing was left without a sponsor when the team's chief mechanic,John Barnes, formed his own team calledPanther Racing using Pagan's former Pennzoil sponsorship. Guerrero drove the No. 21 Pagan Racing Dallara IR8-Oldsmobile Aurora Indy V8. At the season-openingIndy 200 at Walt Disney World Speedway Guerrero qualified 6th and finished 26th after retiring due to a crash after thirteen laps. At theIndianapolis 500 Guerrero won theScott Brayton Award for best showing the spirit of the deceased driver. In the race Guerrero started ninth and finished 22nd, 75 laps down. Following theTrue Value 500 atTexas Motor Speedway Pagan released Guerrero. Guerrero then joinedCobb Racing to drive the No. 23CBRG-Force IR01-NissanInfiniti Q45. Guerrero finished fourth at theLone Star 500 atTexas Motor Speedway. Guerrero finished 26th in the championship with 83 points.
In1999 Guerrero returned withCobb Racing in the No. 50 Cobb RacingG-Force IR01-NissanInfiniti Q45. Guerrero's best finish of the season was a thirteenth place finish at the season-openingTransworld Diversified Services 200 at Walt Disney World Speedway. The team closed down following theIndianapolis 500 where Guerrero started and finished 25th. After Indianapolis Guerrero was ranked seventeenth in points. He eventually finished thirtieth in the championship with 36 points.
For2000 Guerrero managed to get a one-off race forA. J. Foyt Enterprises in the No. 41Harrah's Dallara IR00-Oldsmobile Aurora Indy V8. Guerrero was unable to qualify for the race, making it the first time since1989 that he failed to start the Indianapolis 500. Guerrero later competed in theBelterra Resort Indy 300 atKentucky Speedway for Team Coulson in the No. 40 Team CoulsonG-Force GF01-Oldsmobile Aurora Indy V8. In the race Guerrero started 25th and finished 23rd after retiring after 48 laps due to engine troubles in what would be his final Indy car race. Guerrero finished the season 44th in the championship with seven points.
In2001 Guerrero had no team at the beginning of practice for theIndianapolis 500.Dick Simon Racing then needed a driver for their No. 7Yellow Transportation Dallara IR01-Oldsmobile Aurora Indy V8 afterStéphan Grégoire left the team. Guerrero eventually managed to qualify the car. On the final day of qualifying Grégoire began driving forHeritage Motorsports and bumped Guerrero from the field and Guerrero failed to qualify for the second consecutive year.
Guerrero was reported to be searching for a car to drive in the2002 Indianapolis 500, although nothing materialized. He eventually retired from racing by 2003.[2]
In 1988, Guerrero was among the drivers chosen to compete inIROC XII (International Race of Champions) to be among the drivers to representCART/PPG World Series (other drivers to represent CART wereAl Unser Jr.,Al Unser Sr. andBobby Rahal) based on his performance in1987. Guerrero drove an identical ChevroletCamaro, like all other participants. He missed the season-opening race atDaytona International Speedway due to his injuries received the previous year at an Indianapolis Motor Speedway test. Guerrero qualified on the pole position for the second and third races of the season atRiverside International Raceway andMichigan International Speedway. At Riverside, Guerrero crashed after ten laps and finished in eleventh place and at Michigan he finished tenth after leading for four laps. At the season-ending race atWatkins Glen International, Guerrero started twelfth and finished eleventh, ten laps down. At the end of the season, Guerrero finished twelfth (last) in the championship with nineteen points, earning $30,400 for his efforts during the season.
Guerrero attempted to compete in theNASCAR Busch Series during the2000 season at theCarquest Auto Parts 300 atLowe's Motor Speedway for theHispanic Racing Team in their No. 72 HRT Motorsports ChevroletMonte Carlo but failed to qualify for the event. He returned during the2002 season after his Indy car career was finished, again with the Hispanic Racing Team in their No. 09Ciclon Energy Drink ChevroletMonte Carlo at theAaron's 312 atAtlanta Motor Speedway but again failed to qualify for the race.
Guerrero served as a TV live race commentator forSpeedTV and FOX 3 Latin America broadcasts of theAmerican Le Mans Series and theGrand-Am Rolex Sports Car Series from 2009 to 2013.[3]
(key) (Races inbold indicate pole position; races initalics indicate fastest lap)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Pos | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | Maurer Motorsport | Maurer MM81 | BMW | SIL Ret | HOC 10 | THR 1 | NÜR Ret | VLL Ret | MUG 6 | PAU Ret | PER 4 | SPA Ret | DON Ret | MIS 4 | MAN Ret | 7th | 16 |
(key)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | WDC | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | Ensign Racing | EnsignN180B | FordCosworth DFV 3.0V8 | RSA WD | NC | 0 | |||||||||||||||
| EnsignN181 | BRA DNQ | USW Ret | SMR | BEL DNQ | MON DNQ | DET Ret | CAN Ret | NED DNQ | GBR Ret | FRA DNQ | GER 8 | AUT Ret | SUI Ret | ITA NC | CPL DNS | ||||||
| 1983 | Theodore Racing Team | TheodoreN183 | FordCosworth DFV 3.0V8 | BRA NC | USW Ret | FRA Ret | SMR Ret | MON DNPQ | BEL Ret | DET NC | CAN Ret | GBR 16 | GER Ret | AUT Ret | NED 12 | ITA 13 | EUR 12 | RSA | NC | 0 | |
(key) (Races inbold indicate pole position)
(key) (Races inbold indicate pole position)
| Year | 1 | 2 | Rank | Points |
|---|---|---|---|---|
| 1983–84 | DUQ | INDY 2 | 2nd | 800 |
| Year | Team | No. | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | Rank | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | Bignotti-Cotter Racing | 9 | March 84C | CosworthDFX | LBH 26 | PHX1 24 | INDY 2 | MIL 21 | POR 19 | MEA 25 | CLE 5 | MIS1 5 | ROA 11 | POC 31 | MOH 15 | SAN 25 | MIS2 23 | PHX2 24 | LS 7 | LVG 6 | 11th | 52 | |
| 1985 | Team Cotter | March 85C | CosworthDFX | LBH 26 | INDY 3 | MIL 6 | POR 15 | MEA DNS | CLE 19 | MIS1 13 | ROA 19 | POC 18 | MOH 18 | SAN 23 | MIS2 24 | LS 4 | PHX 21 | MIA 28 | 17th | 34 | |||
| 1986 | Team Cotter | 2 | March 86C | CosworthDFX | PHX1 8 | LBH DNS | INDY 4 | MIL 18 | POR 13 | MEA 4 | CLE 17 | TOR 20 | MIS1 24 | POC 21 | MOH 2 | SAN 17 | MIS2 22 | ROA 4 | LS 5 | PHX 12 | MIA 2 | 9th | 87 |
| 1987 | Vince Granatelli Racing | 4 | March 87C | CosworthDFX | LBH 12 | PHX 1 | INDY 2 | MIL 16 | POR 19 | MEA 19 | CLE 5 | TOR 4 | MIS 14 | POC 3 | ROA 7 | MOH 1 | NAZ Inj | LS Inj | MIA Inj | 4th | 106 | ||
| 1988 | Vince Granatelli Racing | Lola T88/00 | CosworthDFX | PHX 2 | LBH 19 | INDY 32 | MIL DNS | CLE 20 | TOR | MEA | MIS 20 | POC 3 | MOH 11 | MIA 26 | 12th | 40 | |||||||
| March 87C | POR 14 | ROA 22 | NAZ 6 | LS 14 | |||||||||||||||||||
| 1989 | Alex Morales Motorsports | 21 | March 89CE | Alfa Romeo Indy V8 | PHX | LBH | INDY | MIL | DET 8 | POR 23 | CLE 13 | MEA 22 | TOR 28 | MIS 22 | POC 16 | MOH 12 | ROA 21 | LS 25 | 23rd | 6 | |||
| March 88C | NAZ 20 | ||||||||||||||||||||||
| 1990 | Patrick Racing | 20 | March 90CA | Alfa Romeo Indy V8 | PHX 16 | LBH 14 | INDY 23 | MIL 18 | DET 21 | POR 8 | CLE 19 | MEA 15 | TOR | 16th | 24 | ||||||||
| Lola T90/00 | MIS 5 | DEN 17 | VAN 24 | MOH 26 | ROA 8 | NAZ 9 | LS 18 | ||||||||||||||||
| 1991 | Patrick Racing | 40 | Lola T91/00 | Alfa Romeo Indy V8 | SRF | LBH | PHX | INDY 30 | MIL | 38th | 0 | ||||||||||||
| King Racing | 26 | BuickV6(t/c) | DET 15 | POR | CLE | MEA | DEN 19 | VAN | MOH | ROA | NAZ | LS 18 | |||||||||||
| Euromotorsport | 50 | CosworthDFS | TOR 18 | MIS | |||||||||||||||||||
| 1992 | King Racing | 26 | Lola T91/00 | BuickV6(t/c) | SRF | PHX | LBH 13 | 38th | 1 | ||||||||||||||
| 36 | Lola T92/00 | INDY 33 | DET | POR | MIL | NHA | TOR | MIS | CLE | ROA | VAN | MOH | NAZ | LS | |||||||||
| 1993 | King Racing | 40 | Lola T93/00 | Ilmor-Chevrolet Indy V8 265C | SRF 19 | PHX 15 | LBH 5 | INDY 28 | MIL 7 | DET 26 | POR 24 | CLE 29 | TOR 10 | MIS 7 | NHA 4 | ROA 23 | VAN 11 | MOH | NAZ | LS | 14th | 39 | |
| 1994 | Pagan Racing | 21 | Lola T92/00 | BuickV6(t/c) | SRF | PHX | LBH | INDY 33 | MIL | DET | POR | CLE | TOR | MIS | MOH | NHA | VAN | ROA | NAZ | LS | 54th | 0 | |
| 1995 | Pagan Racing | Reynard 94i | Ilmor-Mercedes-Benz IC108B | MIA | SRF | PHX 16 | LBH | NAZ | INDY 12 | MIL | DET | POR | ROA | TOR | CLE | MIS | MOH | NHA | VAN | LS | 33rd | 1 | |
| Year | Team | No. | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | Rank | Points | Ref |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | Pagan Racing | 21 | Reynard 94i | FordCosworth XB | WDW 5 | PHX 16 | 4th | 237 | [4] | |||||||||||
| Reynard 95i | INDY 5 | |||||||||||||||||||
| 1996–97 | NHM 6 | 7th | 221 | [5] | ||||||||||||||||
| Reynard 94i | LVS 4 | |||||||||||||||||||
| Dallara IR7 | NissanInfinitiQ45 | WDW 17 | PHX 7 | INDY 27 | TXS 13 | |||||||||||||||
| OldsmobileAurora Indy V8 | PPIR 18 | CLT 17 | NH2 6 | LV2 14 | ||||||||||||||||
| 1998 | Dallara IR8 | WDW 26 | PHX 27 | INDY 22 | TXS 24 | NHM | DOV | CLT | 26th | 83 | [6] | |||||||||
| CBR Cobb Racing | 23 | G-Force GF01 | NissanInfinitiQ45 | PPIR 21 | ATL 19 | TX2 4 | LVS 20 | |||||||||||||
| 1999 | Cobb Racing | 50 | WDW 13 | PHX 16 | CLT | INDY 25 | TXS DNP | PPIR | ATL | DOV | PPI2 | LVS | TX2 | 30th | 36 | [7] | ||||
| 2000 | A. J. Foyt Enterprises | 41 | Dallara IR00 | OldsmobileAurora Indy V8 | WDW | PHX | LVS | INDY DNQ | TXS | PPIR | ATL | 44th | 7 | [8] | ||||||
| Team Coulson Racing | 40 | G-Force GF01 | KTY 23 | TX2 | ||||||||||||||||
| 2001 | Dick Simon Racing | 07 | Dallara IR01 | PHX | HMS | ATL | INDY DNQ | TXS | PPIR | RIR | KAN | NSH | KTY | STL | CHI | TX2 | NC | - | [9] | |
| Year | Chassis | Engine | Start | Finish | Team |
|---|---|---|---|---|---|
| 1984 | March 84C | CosworthDFX | 7 | 2 | Bignotti-Cotter Racing |
| 1985 | March 85C | CosworthDFX | 16 | 3 | Team Cotter |
| 1986 | March 86C | CosworthDFX | 8 | 4 | Team Cotter |
| 1987 | March 87C | CosworthDFX | 5 | 2 | Vince Granatelli Racing |
| 1988 | Lola T88/00 | CosworthDFX | 12 | 32 | Vince Granatelli Racing |
| 1990 | March 90CA | Alfa Romeo Indy V8 | 28 | 23 | Patrick Racing |
| 1991 | Lola T91/00 | Alfa Romeo Indy V8 | 28 | 30 | Patrick Racing |
| 1992 | Lola T92/00 | BuickV6(t/c) | 1 | 33 | King Racing |
| 1993 | Lola T93/00 | Ilmor-Chevrolet Indy V8 265C | 10 | 28 | King Racing |
| 1994 | Lola T92/00 | BuickV6(t/c) | 30 | 33 | Pagan Racing |
| 1995 | Reynard 94I | Ilmor-Mercedes-Benz IC108B | 13 | 12 | Pagan Racing |
| 1996 | Reynard 95i | Ford Cosworth XB | 6 | 5 | Pagan Racing |
| 1997 | Dallara IR7 | NissanInfinitiQ45 | 19 | 27 | Pagan Racing |
| 1998 | Dallara IR8 | OldsmobileAurora Indy V8 | 9 | 22 | Pagan Racing |
| 1999 | G-Force GF01 | NissanInfinitiQ45 | 25 | 25 | Cobb Racing |
| 2000 | Dallara IR00 | OldsmobileAurora Indy V8 | DNQ | A. J. Foyt Enterprises | |
| 2001 | Dallara IR01 | OldsmobileAurora Indy V8 | DNQ | Dick Simon Racing | |
(key) (Bold – Pole position awarded by qualifying time.Italics – Pole position earned by points standings or practice time. * – Most laps led.)
| NASCAR Busch Series results | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Team | No. | Make | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | NBSC | Pts | Ref | |
| 2000 | Hispanic Racing Team | 72 | Chevy | DAY | CAR | LVS | ATL | DAR | BRI | TEX | NSV | TAL | CAL | RCH | NHA | CLT DNQ | DOV | SBO | MYB | GLN | MLW | NZH | PPR | GTY | IRP | MCH | BRI | DAR | RCH | DOV | CLT | CAR | MEM | PHO | HOM | NA | - | [10] | |||
| 2002 | Hispanic Racing Team | 09 | Chevy | DAY | CAR | LVS | DAR | BRI | TEX | NSH | TAL | CAL | RCH | NHA | NZH | CLT | DOV | NSH | KEN | MLW | DAY | CHI | GTY | PPR | IRP | MCH | BRI | DAR | RCH | DOV | KAN | CLT | MEM | ATL DNQ | CAR | PHO | HOM | NA | - | [11] | |
(key) (Bold - Pole position. * – Most laps led.)
| International Race of Champions results | ||||||||
|---|---|---|---|---|---|---|---|---|
| Year | Make | 1 | 2 | 3 | 4 | Pos. | Points | Ref |
| 1988 | Chevy | DAY | RSD 11 | MCH 10 | GLN 11 | 12th | 19 | [12] |
Roberto Guerrero sporting positions | ||||||||||||||||||||||||||||
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| International | |
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| National | |
