The2023 NASCAR Cup Series was the 75th season forNASCAR professional stock car racing in the United States and the 52nd season for the modern-eraCup Series. The season started with theBusch Light Clash at theLos Angeles Memorial Coliseum on February 5.^[1] That race was followed by theDaytona Duel qualifying races and the 65th running of theDaytona 500 (the first points race of the season) on February 19, both atDaytona International Speedway.^[2] The season ended with theNASCAR Cup Series Championship Race atPhoenix Raceway^[3] on November 5.^[4]

This was the final season for2014 champion andStewart–Haas Racing driverKevin Harvick, who announced his plans to retire at the end of the season on January 12, 2023.^[5] This was also the first season since1999 without2004 championKurt Busch, who announced on October 15, 2022, that he would retire from full-time Cup Series competition.^[6] On August 26, 2023, Busch announced his complete retirement from the Cup Series.^[7]

Following the2023 Coke Zero Sugar 400 at Daytona,Martin Truex Jr. ofJoe Gibbs Racing clinched the regular season championship.^[8]Ty Gibbs, also of Joe Gibbs Racing, wonNASCAR Rookie of the Year honors afterNoah Gragson was suspended and released fromLegacy Motor Club in August 2023.^[9] Prior to theXfinity 500 atMartinsville,Chevrolet claimed its 42nd Manufacturers' Championship.^[10] At season's end,Ryan Blaney ofTeam Penske won the 2023 championship.^[11]

• NASCAR debuted a "wet weather" package for short tracks in 2023 in response to rain delays. The package will consist of a windshield wiper, flaps behind the wheels, taillights, and rain tires.^[96] This was made official on January 31, 2023, when NASCAR announced that theLos Angeles Memorial Coliseum,Martinsville Speedway,New Hampshire Motor Speedway,North Wilkesboro Speedway,Richmond Raceway, theChicago Street Course, andPhoenix Raceway would have wet weather packages.^[97]
• Due to safety concerns from the2022 season with drivers suffering concussions and feeling sore due to rear-end crashes, NASCAR made changes to theNext Gen's rear structure for 2023 to create a bigger crumple zone in the hopes that it will prevent the energy from those impacts from affecting the driver. The adjustment also includes slight changes to the center section of the car. Changes to the front structure were also slated to be made for the 2nd race atAtlanta Motor Speedway to further decrease the risk of injury.^[98][99]
• NASCAR formally banned drivers from wall-riding (afterRoss Chastain's "Hail Melon" stunt at the2022 Xfinity 500). NASCAR cited previously existing rules that will now be enforced in a manner to ban the move.^[100]
• Loose wheel penalties have been reduced to a two-lap penalty and two-race suspension to crew members (instead of four-race crew chief suspension).
• The requirement that drivers must be in the top 30 of the standings to be eligible for the playoffs has been removed.
• Stage break cautions have been eliminated at all road course races. Stage points will still be awarded to drivers on predetermined laps, but no caution will be displayed. This was done in an effort to reduce the time spent under cautions at lengthy tracks and to increase strategy during the race.^[97] On September 12, 2023, NASCAR officials announced that theplayoff race at the Charlotte ROVAL will not have this rule and that there will be cautions at the stage ends. This was done due to there only being one caution in the previous two road course events atIndianapolis andWatkins Glen. Additionally,Elton Sawyer, NASCAR's senior vice president of competition, "noted the desire to officiate all 10 Playoffs races consistently – with each race having stage-break cautions."^[101]
• The choose cone rule, introduced in 2020, was extended to plate/superspeedway races for 2023, as well to dirt races.^[102] On March 9, 2023, NASCAR announced that all road courses would have the choose cone rule for 2023, meaning that every race will have this rule.^[103]

The 2023 schedule was released on September 14, 2022.^[104] The 2023 Daytona 500 was held on Sunday, February 19.^[2] The season finale was held atPhoenix Raceway during the first weekend of November.^[3] TheBusch Light Clash returned to theLos Angeles Memorial Coliseum for the second year in a row and the race was held on February 5, which again was one week before theSuper Bowl and two weeks before theDaytona 500.^[1] This was the final season forAuto Club Speedway in its 2 mile configuration, as the track has since been dropped from the schedule to be reconfigured as a short track.

Bolded races indicate aNASCAR Major, also known as a Crown Jewel race.

After NASCAR used aChicago Street Course track in the2021 eNASCAR iRacing Pro Invitational Series, it was speculated that NASCAR would like to make it a reality and have a street race in Chicago on the Cup Series schedule in the future. On July 7, 2022, Jordan Bianchi fromThe Athletic reported that an official announcement of this being added to the Cup Series schedule would come on July 19.^[117] On June 17, Adam Stern fromSports Business Journal suggested that the Chicago Street Course could replaceRoad America on the 2023 Cup Series schedule as the street race would likely replace one of the road course races and Road America does not have a contract to have a Cup Series race in 2023.^[118] Both the addition of the Chicago street race to the schedule and the fact that it would replacethe race at Road America came on July 19.^[111]

On June 24, 2022, Adam Stern also reported thatFox Sports, which has theTV rights to the All-Star Race, has been trying to convince NASCAR andSpeedway Motorsports to move theNASCAR All-Star Race to a different venue each year as is the case in other sports. After the2022 All-Star Race atTexas Motor Speedway, which was widely considered unpopular and controversial by fans and the industry, the track tweeted that they would be hosting the All-Star Race again in 2023. However, the tweet was deleted amidst negative reactions to the announcement, leading to speculation that plans could change.^[119] On September 7, it was revealed that the All-Star race will take place on the renovatedNorth Wilkesboro Speedway.^[120] It would be the first NASCAR Cup race on the track since 1996, after its dates were replaced by races at Texas Motor Speedway andNew Hampshire Motor Speedway in 1997.

On January 2, 2023, thespun.com reported that theAutotrader EchoPark Automotive 500 at Texas Motor Speedway will be reduced to 400 miles. The article states that it is an attempted overall effort by NASCAR to hopefully reduce race times, so that they are closer to 2.5 hours, than the normal 3.5 to 4 hours.^[121]TheAmbetter Health 400 at Atlanta Motor Speedway was likewise shortened from 500 miles for similar reasons.

Aric Almirola won the pole from the heat races.Ryan Blaney spun and collectedChase Elliott,Ty Gibbs, andDaniel Suárez. Blaney would spin two more times whileBubba Wallace, who led a lot of laps, spun and got into the wall.Martin Truex Jr. would hold offAustin Dillon andKyle Busch for the win.^[122]

In Daytona 500 qualifying,Alex Bowman ofHendrick Motorsports won the pole and was joined on the front row by teammateKyle Larson.Jimmie Johnson andTravis Pastrana made the Daytona 500 on speed.^[123]

In the first Duel, Bowman started on pole.Joey Logano dominated and won the caution free Duel by holding offChristopher Bell. In the second Duel, Larson started on pole.Kyle Busch spun while leading after contact withDaniel Suárez and collectedRiley Herbst,Austin Hill, andJustin Haley.Aric Almirola held offAustin Cindric to win the second Duel.Conor Daly andZane Smith made the race while Hill andChandler Smith failed to qualify.^[124]

Alex Bowman started on pole. Brad Keselowski won the first stage.Tyler Reddick spun after contact withKevin Harvick and collectedChase Elliott andErik Jones.Ross Chastain won the second stage.Ryan Preece spun into the pack and collected Harvick,Michael McDowell, andMartin Truex Jr.Daniel Suárez spun, sending the race to overtime.Austin Dillon spun after contact withWilliam Byron and collected Chastain,Jimmie Johnson,Zane Smith, andHarrison Burton. On the restart,Kyle Larson spun and collected Keselowski,Ryan Blaney,Bubba Wallace, andTravis Pastrana asRicky Stenhouse Jr. won the race overJoey Logano under caution.^[125]

Christopher Bell was awarded the pole after qualifying was canceled due to rain.Kyle Larson went to the garage with an electrical issue and returned several laps down.A. J. Allmendinger spun after contact withCorey LaJoie.Ross Chastain dominated, winning both stages and leading the most laps. A wreck occurred when the field stacked up on a restart, collecting Bell,Aric Almirola,Tyler Reddick,Justin Haley,Ryan Preece,Todd Gilliland, andRyan Blaney.Kyle Busch overtook Chastain on the final round of green flag pit stops and pulled away to score his first win withRichard Childress Racing andLucas Oil, and breaking the tie withRichard Petty for the most consecutive seasons with at least one win with 19 straight seasons.^[126]

Joey Logano won the pole.William Byron dominated, winning both stages and leading the most laps. Logano got into the wall after contact withBrad Keselowski and spun through the grass.Kyle Larson was headed to the win whenAric Almirola got into the wall, sending the race to overtime.A. J. Allmendinger got into the wall after contact withRyan Preece as Byron took the lead fromMartin Truex Jr. and held off teammates Larson andAlex Bowman for the win.^[127]

Kyle Larson won the pole.William Byron won the first stage while Larson won the second stage.Aric Almirola had a tire come off after a pit stop.Kevin Harvick, who was looking for his 10th career win atPhoenix Raceway, was leading comfortably with 10 laps to go, but a caution came out for aHarrison Burton spin on the frontstretch. On the caution pit stops, Harvick took 4 tires and fell back to 7th. On the ensuing restart,A. J. Allmendinger andNoah Gragson got together and collectedTy Gibbs, sending the race to overtime. Byron took the lead from Larson and held offRyan Blaney for his second straight win.^[128] The Wednesday following the race, NASCAR handed L2 penalties to all 4Hendrick Motorsports teams as well as the No. 31Kaulig Racing team ofJustin Haley for a loss of 100 points (owners only for No. 9, as Elliott was injured andJosh Berry, his replacement, is a Xfinity Series regular), 10 playoff points, and fined $100,000 for illegally modifying hood louvers prior to practice, whileDenny Hamlin was fined $50,000 and docked 25 points for intentionally wreckingRoss Chastain on the final restart (Hamlin's penalty came after an admission on hisActions Detrimental podcast).^[129]

Joey Logano won the pole.Bubba Wallace got into the wall early as Logano won the first stage whileAustin Cindric won the second stage.Kevin Harvick spun while leading and collectedJosh Berry,Chris Buescher,Harrison Burton,William Byron, andB. J. McLeod.Aric Almirola blew a tire while leading and spun, collectingKyle Larson. Logano made a last lap pass onBrad Keselowski to win.^[130]

William Byron won the pole.Ty Dillon made contact withBrad Keselowski and collectedJimmie Johnson, who exited the race early. Bryon won the first stage whileTyler Reddick won the second stage.Austin Dillon got a flat tire, sending the race to overtime. On the restart,Ryan Preece got intoRyan Blaney, causing heavy damage. On the next restart,Daniel Suárez got a flat tire. On the third restart, Reddick pulled away from the field and picked up his first win with23XI Racing andMonster Energy.^[131]

Alex Bowman won the pole after qualifying was canceled due to rain.J. J. Yeley spun after contact withDenny Hamlin asWilliam Byron won the first stage. Hamlin would win the second stage. Byron spun after contact withChristopher Bell.Kyle Larson would hold off teammateJosh Berry for the win as Berry scored his best career Cup Series finish filling in forChase Elliott.^[132]

Kyle Larson won the pole from the heat races.Joey Logano got in the wall after contact withWilliam Byron, collectingTodd Gilliland andBubba Wallace. Larson won the first stage whileTyler Reddick won the second stage.Ryan Preece got loose and got into Larson, putting them into the wall. On a restart,Ryan Blaney spun but continued on.Christopher Bell held off Reddick as a caution came out on the final lap for the win.^[133]

Ryan Preece won the pole. Preece dominated and won the caution free first stage, but after leading the next few laps on the restart, Precce was penalized for speeding.Kevin Harvick won the second stage after a spin byHarrison Burton.Chase Briscoe took the lead and led a lot of laps.Joey Logano had the lead late, butKyle Larson took the lead from Logano and pulled away to his second win of the season.^[134]

Denny Hamlin won the pole.Chase Elliott won the first stage whileAric Almirola won the second stage.Harrison Burton spun from the lead after contact withNoah Gragson. Late in the race, several drivers were coming close on fuel.Joey Logano got into the wall after contact withDaniel Suárez and collectedCorey LaJoie andRicky Stenhouse Jr., sending the race to overtime. On the restart, Gragson got into the wall after contact withRoss Chastain and collected Almirola,Kevin Harvick,Ty Gibbs,Kyle Larson, andRyan Preece. On the final lap,Bubba Wallace spun from the lead trying to block a run byRyan Blaney and brought out the caution.Kyle Busch had the lead at the moment of caution and had enough fuel to make it back to the flags for his second win of the season and his first at Talladega since2008.^[135]

Kyle Busch won the pole after qualifying was canceled due to rain. The race was postponed from Sunday to Monday due to rain.Brennan Poole got into the wall after contact withRoss Chastain and collectedKyle Larson.William Byron won the first stage while Chastain won the second stage.Joey Logano lost a tire and got into the wall. On the restart,Martin Truex Jr. held off Chastain for his third Dover win on a Monday to snap a 54-race winless streak and complete a brother sweep as his brotherRyan Truex won his firstXfinity Series race two days prior.^[136]

William Byron won the pole.Kyle Larson spun from the lead early after contact withTyler Reddick. Byron would get into the wall and fall back in the field.Denny Hamlin won the first stage whileJoey Logano won the second stage.Kyle Busch spun and got into the wall after a flat tire. Late in the race,Noah Gragson got into the wall after contact withRoss Chastain. Larson and Hamlin battled for the lead and on the final lap, Larson got into the wall and Hamlin made the pass for the win, tyingTony Stewart on NASCAR's All-Time Wins List and earning the 400th NASCAR win forJoe Gibbs Racing.^[137]

Martin Truex Jr. won the pole. Truex won the first stage, but spun after contact withRoss Chastain, who won the second stage. Late in the race,Erik Jones lost a tire and spun collectingMichael McDowell,Daniel Suárez,Austin Dillon, andRyan Newman. Truex got turned into the wall byJoey Logano and collectedAric Almirola andTyler Reddick. On the restart, Chastain andKyle Larson got into the wall while battling for the lead, sending the race to overtime. On the restart,William Byron held offKevin Harvick for his third win of the season and the 100th Cup Series victory for the #24.^[138]

In The Open,Ty Gibbs started on pole.Noah Gragson got into the wall and collectedTodd Gilliland,Chandler Smith, andRyan Newman.Josh Berry held off Gibbs to win the Open and advanced to the All-Star Race with Gibbs and Gragson, who won the fan vote.

In the All-Star Race,Daniel Suárez started on pole.Ricky Stenhouse Jr. spun after contact withErik Jones.Kyle Larson dominated and held offBubba Wallace to win the $1 million for his third All-Star Race win, his third in five years.^[139]

William Byron won the pole after qualifying was canceled due to rain. The race was postponed from Sunday to Monday due to rain.Jimmie Johnson spun twice early as Byron won the first stage. After a small delay due to rain, the race resumed.Denny Hamlin got turned into the wall byChase Elliott, taking both out of the race.Chris Buescher won the second stage whileRyan Blaney won the third stage.Kevin Harvick spun after contact withTyler Reddick.Kyle Larson spun and collectedJoey Logano andTy Gibbs. On the restart, Blaney pulled away and held off Byron for the win.^[140]

Kyle Busch won the pole. The race was red flagged due to lightning. When the race resumed, Busch won the first stage whileRyan Blaney won the second stage. Several drivers had brake rotor issues includingCarson Hocevar,Tyler Reddick, andNoah Gragson.Austin Dillon got intoRicky Stenhouse Jr. after contact withAustin Cindric.Bubba Wallace got into the wall, sending the race to overtime. Busch held offDenny Hamlin for his third win of the season.^[141]

Denny Hamlin won the pole. Hamlin won the first stage whileKyle Busch won the second stage. Hamlin spun and got into the wall after breaking the toe link.Tyler Reddick spun after a flat tire.Martin Truex Jr. dominated, passingChase Elliott for the lead and holding off Busch for his second win of the season and fourth at Sonoma.^[142]

Ross Chastain won the pole.Tyler Reddick won the first stage. During Stage 2, Reddick spun coming down pit road due to a right rear wheel separation, resulting in a penalty. On the restart,Ryan Blaney spun and hit the bare concrete wall near the infield.Denny Hamlin won the second stage. Chastain would get the lead back in the final stage and held offMartin Truex Jr. for the win.^[143]

Denny Hamlin won the pole.Erik Jones locked up on Lap 1 and hitBrad Keselowski, sending him intoNoah Gragson, with all three hitting the tire barrier.Kyle Busch sled and hit the tire barrier, causing a caution.Alex Bowman exited the race early with a blown engine.Christopher Bell won both stages. Bell sled into the tire barrier and caused several cars to clog the track.Austin Dillon would get into the wall while he andJustin Haley were fighting for the lead.Martin Truex Jr. spun into the tire barrier. On the restart,New Zealand-bornV8 Supercars driverShane van Gisbergen took the lead from Haley.Ricky Stenhouse Jr. got into the tire barrier after contact withBubba Wallace, sending the race to overtime. On the restart, van Gisbergen held off Haley to win the race forTrackhouse Racing, earning his first Cup Series victory in his NASCAR debut, and becoming the first driver to win in their first career start sinceJohnny Rutherford in1963.^[144]

Aric Almirola won the pole.Ryan Blaney won the first stage whileBrad Keselowski won the second stage.Kyle Larson spun after contact withErik Jones.Alex Bowman got loose and spun intoDenny Hamlin.Ryan Preece spun out and collectedBubba Wallace.William Byron, despite spinning out on Lap 80 and being dealt a pit road penalty, was in the race lead. The race went seven laps under caution before NASCAR officials waved the Red flag at Lap 185 and ordered all cars to pit road as rain began to hit the track and lightning was spotted several miles from the track. With heavy rain showers and lightning, NASCAR officials declared the race official after 185 laps with Byron named the winner.^[145]

Christopher Bell won the pole.Kyle Busch slammed into the wall along withCorey LaJoie.Aric Almirola hit the wall hard due to a loose wheel while leading the race.Martin Truex Jr. dominated, leading 154 laps and winning both stages. Bell slammed into the wall late. On the restart, Truex would hold offJoey Logano for his third win of the season.^[146]

William Byron won the pole.Joey Logano won stage one, but crashed out on a restart withDaniel Suárez.Kyle Larson would stretch his fuel and win the second stage.Austin Dillon crashed hard into the wall after contact withTyler Reddick in the final stage, resulting in Dillon throwing his helmet at Reddick's car while the race was under caution. Various pit strategies would occur during the final stage with Larson cycling to the lead on a two tire gamble. On a late race restart,Denny Hamlin would force Larson into the wall for the lead. Hamlin would pull away on the final restart asRyan Preece spun and was unable to get his car re-fired on the final lap. Hamlin won under caution for his second win of the season, his 50th career win, and earned his record seventh Pocono win, breaking a tie withJeff Gordon.^[147]

Tyler Reddick won the pole. Reddick led every lap in a caution-free stage 1 and won the stage.Brad Keselowski won a caution-free stage 2. At the start of the final stage, Keselowski stayed out front. During a pit stop on lap 285, Keselowski almost missed his stall and ended up partially sideways, resulting in a lengthy pit stop and never retook the lead. After differing tire strategies throughout the final stage,Chris Buescher cycled to the lead on lap 305.Daniel Suárez spun after contact withNoah Gragson. After pit stops and the restart with 3 laps to go, Buescher retained the lead and pulled away fromDenny Hamlin for his third career win and locked himself into the playoffs.^[148]

Christopher Bell won the pole.Kyle Busch andChase Elliott both exited the race early due to damage from tire issues.Martin Truex Jr. won the first stage asWilliam Byron got into the wall after a flat tire. Bell would get back to the lead, but got into the wall battlingAlex Bowman for the spot. The race was red flagged due to rain and the remainder of the race was postponed until the following day. When the race resumed, Truex passedDaniel Suárez for the lead and won the second stage. Front Row teammatesMichael McDowell andTodd Gilliland got together and collected Bowman.Chris Buescher would take the lead after the final round of green flag pit stops and held off a charging Truex for the second straight win.^[149]

Daniel Suárez won the pole. The race featured international drivers likeShane van Gisbergen,Brodie Kostecki,Mike Rockenfeller,Jenson Button, andKamui Kobayashi.Justin Haley got into the tire barrier after contact withJoey Logano.Michael McDowell won the first stage whileDenny Hamlin won the second stage. McDowell was able to hold offChase Elliott to score the win for his second career victory.^[150]

Denny Hamlin won the pole.Michael McDowell would win the first stage whileWilliam Byron won the second stage. McDowell exited the race due to an electrical issue.Chase Elliott ran out of fuel during the race and stalled on the track, causing the only caution of the day. Byron outdueledKyle Busch and then pulled away to his fifth win of the season and his first career win on a road course.^[151]

Chase Briscoe won the pole.Martin Truex, Jr. would win the first stage and clinch the regular-season championship. On the final lap of stage 2,Ty Gibbs would spin from the lead after a shove fromChristopher Bell on turn 4 and cause "The Big One" involving multiple cars includingAustin Dillon,Ryan Blaney,Austin Cindric,Riley Herbst, andRicky Stenhouse Jr. asBrad Keselowski won the second stage.Kevin Harvick was leading when his teammateRyan Preece spun after contact withErik Jones and went airborne and flipped in the infield grass a dozen times before coming to rest on its wheels with 5 laps to go, also collecting Briscoe. In overtime,Chris Buescher andBrad Keselowski drove past Harvick and got a 1–2 finish for the team and Buescher's third win in five races.Bubba Wallace got the final playoff spot, beating out favoritesChase Elliott andAlex Bowman.^[152]

Christopher Bell won the pole.Denny Hamlin swept the stages and led the most laps. The race came to a halt as the lights inside the track in Turns 3 and 4 did not illuminate when the sun set. Hamlin later pitted because of a loose wheel and would never return to the front.Kevin Harvick, who was second at the time, went to pit during green flag stops.Tyler Reddick, who was the leader at the time, tried to do the same at the last second, resulting in him checking up, hittingRyan Newman and causing him to spin. The caution came and closed pit road before Harvick crossed the pit entry line. Harvick was penalized as he took a full pit-stop, which placed him at the end of the lead lap.Kyle Larson was able to pass Reddick for the lead during pit stops.Alex Bowman andDaniel Suárez got together and collectedHarrison Burton. Larson held the lead on the restart and won the race, advancing to the next round of the playoffs.^[153]

Christopher Bell won his second straight pole.Martin Truex Jr. suffered a broken suspension and got into the wall on Lap 4, exiting the race and hurting his points.Kyle Larson won the first stage whileBrad Keselowski won the second stage.Chris Buescher got into the wall after a flat tire, sending the race to overtime.Daniel Suárez stayed off pit road while the leaders pit andErik Jones,Kyle Busch, andJoey Logano took two while everyone else took four. On the restart,Tyler Reddick made a three-wide pass on Logano and Jones and won the race to advance to the next round of the playoffs.^[154]

Christopher Bell won his third straight pole. Bell dominated and won both stages.Denny Hamlin andTy Gibbs both also had dominant cars. In the final stage,Corey LaJoie spun and slammed intoJoey Logano, knocking Logano out of the race and ended his hopes of a second straight title.Martin Truex Jr. got into the wall after a flat tire. Hamlin would pull away from the field and score the win, advancing to the next round of the playoffs whileKevin Harvick, Logano,Michael McDowell, andRicky Stenhouse Jr. were eliminated.^[155]

Bubba Wallace won the pole. RCR teammatesAustin Dillon andKyle Busch both got into the wall after tire issues, taking them both out of the race.Tyler Reddick won the first stage whileKyle Larson won the second stage. Wallace continued his dominance and late in the race was battling Larson for the lead when Larson got loose and spun hard into the wall. Bubba pulled away on the restart, but Reddick andErik Jones got in the wall and collectedRyan Blaney,Austin Cindric, andA. J. Allmendinger. On the restart,William Byron made a three-wide pass on Wallace andChase Briscoe and pulled away and held offRoss Chastain to advance to the next round of the playoffs and earning the 300th Cup Series victory forHendrick Motorsports.^[156]

Aric Almirola won the pole.Ricky Stenhouse Jr. ran out of fuel at the end of the first stage and slowed up causingRoss Chastain to get into the wall withKyle Busch andChristopher Bell asRyan Blaney won the stage.Brad Keselowski won the second stage, but would later make contact withCarson Hocevar and start a big wreck collectingAustin Dillon,Chris Buescher,Harrison Burton,Ty Gibbs, and others which brought out the red flag. On the last lap, the field wrecked involvingChase Elliott,Riley Herbst,Chase Briscoe, andAustin Cindric as Blaney beatKevin Harvick to the line to win the race and advance to the next round of the playoffs. Harvick would later be disqualified after failing post-race inspection and was credited with last place.^[157]

Tyler Reddick won the pole. Reddick won the first stage whileChase Elliott won the second stage. However, Elliot just missed his planned stop when a caution came out just as he was approaching pit road, resulting in him being shuffled to the back of the pack due to pitting under caution.Denny Hamlin got stacked up, spun, and made contact withMike Rockenfeller, taking him out of the race.Erik Jones spun after contact withRicky Stenhouse Jr., andMichael McDowell, who had power steering issues, slammed into the back of Jones.A. J. Allmendinger took the lead fromKyle Busch halfway through the race and held offWilliam Byron for his third career win.Ross Chastain,Brad Keselowski, Busch, andBubba Wallace were eliminated from the playoffs.^[158]

Christopher Bell won the pole, his fourth in the playoffs.Kyle Larson dominated, winning both stages.Legacy Motor Club driversErik Jones andCarson Hocevar both had flat tires along withChase Briscoe, resulting in the latter two spinning.Alex Bowman slammed the wall and exited the race after losing power steering. Larson, despite minor damage after getting loose into the wall during Stage 2, held off a charging Bell to win and advance to the Championship 4 in Phoenix.Ryan Blaney, who had finished sixth, was originally disqualified after post-race inspection found his car's left front shock didn't meet the overall specified length, but NASCAR rescinded the disqualification after the damper template used for post-race inspection was discovered to have an issue.^[159]

Martin Truex Jr. won the pole.Kyle Larson won the first stage whileRyan Blaney won the second stage. During green flag pit stops, Larson slammed into the sand barrels at the entrance of pit road, causing him to exit the race.Denny Hamlin got a flat tire and slammed the wall and Truex suffered a blown engine, taking them both out. Their teammateChristopher Bell took the lead fromWilliam Byron and held off Blaney to win the race and advance to the Championship 4 in Phoenix.^[160]

Martin Truex Jr. won the pole for the second straight race.Alex Bowman spun after contact withAustin Dillon.Denny Hamlin andRyan Blaney dominated the race, leading the majority of the laps and splitting the stage wins.Ty Gibbs spun after contact withJoey Logano. Several cars stayed out while Hamlin and Blaney were trapped in traffic.Chase Elliott andAric Almirola led most of the final 170 laps, but Blaney passed both and held off Almirola to win the race and advance to the Championship 4 in Phoenix joiningKyle Larson andChristopher Bell along withWilliam Byron while Hamlin, Truex,Tyler Reddick, andChris Buescher were eliminated from the playoffs.^[161]

William Byron won the pole. Byron won the first stage after leading every lap. On lap 109,Christopher Bell got into the wall hard due to a brake rotor failure, taking him out of championship contention early.Chris Buescher won stage 2. On lap 276,Kyle Busch spun, creating a late restart. On lap 292,Ryan Blaney passedKyle Larson for second place, putting him in the championship lead.Ross Chastain won the race after leading 157 laps. Blaney became the 2023 NASCAR Cup Series Champion after his second-place finish.Kevin Harvick finished 7th in his final race.^[162]

(key)Bold – Pole position awarded by time.Italics – Pole position set by competition-based formula. * – Most laps led.¹ – Stage 1 winner.² – Stage 2 winner.³ – Stage 3 winner.^{[N 1]1–10} - Regular season top 10 finishers.
. – Eliminated after Round of 16. – Eliminated after Round of 12. – Eliminated after Round of 8

Notes

Reference:^[164]

• 2023 NASCAR Xfinity Series
• 2023 NASCAR Craftsman Truck Series
• 2023 ARCA Menards Series
• 2023 ARCA Menards Series East
• 2023 ARCA Menards Series West
• 2023 NASCAR Whelen Modified Tour
• 2023 NASCAR Pinty's Series
• 2023 NASCAR Mexico Series
• 2023 NASCAR Whelen Euro Series
• 2023 NASCAR Brasil Sprint Race
• 2023 SRX Series
• 2023 CARS Tour
• 2023 SMART Modified Tour