The IMSA SportsCar Championship, currently known as the IMSA WeatherTech SportsCar Championship under sponsorship, is a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA). It is a result of a merger between two existing North American sports car racing series, the American Le Mans Series and Rolex Sports Car Series. At its inception, the name was United SportsCar Championship, which subsequently changed to IMSA SportsCar Championship in 2016. IMSA awards championships and trophies to the most successful drivers and teams in each of the series' categories over the course of a season. Since 2021, points are awarded for individual race results as well as qualifying, with the highest tally of points winning the respective championship or trophy. Other unique championships include the Michelin Endurance Cup, WeatherTech Sprint Cup, Jim Trueman Award, Bob Akin Award, and the VP Fuels Front Runner Award. The Drivers', Teams', and Manufacturers' Championships have awarded since the series began in 2014, while the Tire Manufacturers' Championships was discontinued after the 2015 season. At the conclusion of the season, three champions receive an automatic invitation to the 24 Hours of Le Mans. The champions are not formally crowned until the IMSA awards ceremony after the season's final race.
There were four classes when the series was founded in 2014: Prototype (P), Prototype Challenge (PC), Grand Touring Le Mans (GTLM), and Grand Touring Daytona (GTD). In 2017, the PC class was discontinued when the season ended. The Prototype category was replaced by the Daytona Prototype International (DPi) and Le Mans Prototype 2 (LMP2) classes in 2019. In 2021, the Le Mans Prototype 3 (LMP3) category was introduced. The following year, Grand Touring Daytona Pro (GTD Pro) replaced the GTLM class. GTP replaced DPi as IMSA's top class and the LMP3 category was discontinued following the 2023 season.
As of the 2024 season, 53 drivers and 20 teams have won an IMSA title. Dane Cameron and Antonio García are the most successful IMSA drivers with four championships and Action Express Racing, PR1/Mathiasen Motorsports, and Corvette Racing are the series' most successful team with five titles. There have been 28 drivers and 10 teams who have won a title in the Prototype classes. Jon Bennett, Colin Braun, Dane Cameron, and Felipe Nasr have earned the most Prototype drivers' titles with three each and Action Express Racing, and PR1/Mathiasen Motorsports have achieved the most Prototype teams' championships with four. Of the 28 drivers and 12 teams to have achieved a GT championship, García's four championship wins are the most in the GT classes and Corvette Racing have claimed all five of their teams' titles in the GT categories.
Key +Tyre manufacturersKeySymbolTyre manufacturerContinentalMichelinFalken Tire
Drivers' Championships
Current categories
GTP +Winners of the GTP Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched20232132733Race 11 of 112120240272982Race 11 of 1111320250162907Race 11 of 11187202632*7*3020Race 11 of 11161
LMP2 +Winners of the LMP2 Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched2019367270Race 12 of 12132020644196Race 10 of 113520215362162Race 12 of 1213620220252018Race 12 of 1212620234141995Race 11 of 113720241132227Race 11 of 116120252232254Race 11 of 1110020260252322Race 11 of 1120
GTD Pro +Winners of the GTD Pro Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched20223583497Race 12 of 1222020234293760Race 11 of 1111220242353122Race 11 of 11420250163265Race 11 of 1173
GTD +Winners of the GTD Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched2014246304Round 13 of 1392015012281Race 12 of 1222016027332Race 12 of 12292017017340Race 12 of 12202018128333Race 12 of 1242019215283Race 12 of 12192020226288Race 11 of 11420210463284Race 12 of 1212120220252898Race 12 of 122320233573482Race 10 of 1126120240463266Race 11 of 1123020251343103Race 11 of 11195
Defunct categories
Prototype +Winners of the Prototype Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched2014038349Race 13 of 13192015226309Race 12 of 1232016027314Race 12 of 1232017557310Race 12 of 12192018015277Race 12 of 123
DPi +Winners of the DPi Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched2019337302Race 12 of 1252020445265Race 11 of 11120215373407Race 12 of 121120223273432Race 12 of 1286
PC +Winners of the PC Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched2014348321Race 12 of 13392015126318Race 12 of 1252016148355Race 12 of 1202017878283Race 9 of 1239
LMP3 +Winners of the LMP3 Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched20211572176Race 12 of 1218620220252002Race 12 of 125420232462162Race 11 of 11217
GTLM +Winners of the GTLM Drivers' ChampionshipSeasonDriversTeamManufacturerTyrePolesWinsPointsClinched2014127331Race 13 of 1352015146315Race 12 of 12102016047345Race 12 of 12172017135334Race 12 of 12272018208322Race 12 of 1262019237330Race 12 of 12132020658351Race 10 of 113220217493549Race 12 of 12101
Teams' Championships
Current categories
GTP +Winners of the GTP Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2023Cadillac V-Series.R2132733Race 11 of 11212024Porsche 9630272982Race 11 of 111132025Porsche 9630162907Race 11 of 11187
LMP2 +Winners of the LMP2 Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2019Oreca 07367270Race 12 of 12132020Oreca 07644196Race 10 of 11352021Oreca 075362162Race 12 of 121362022Oreca 070252018Race 12 of 121262023Oreca 0741441995Race 11 of 11372024Oreca 071132227Race 11 of 11612025Oreca 072232254Race 11 of 11100
GTD Pro +Winners of the GTD Pro Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2022Porsche 911 GT3 R3583497Race 12 of 122202023Lexus RC F GT34293760Race 11 of 111122024Porsche 911 GT3 R (992)2353122Race 11 of 1142025Chevrolet Corvette Z06 GT3.R0163265Race 11 of 1173
GTD +Winners of the GTD Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2014BMW Z4 GT3246304Round 13 of 1392015Ferrari 458 Italia GT3012281Race 12 of 1222016Ferrari 458 GT3027332Race 12 of 1229Ferrari 488 GT32017Ferrari 488 GT3017340Race 12 of 12202018Lamborghini Huracán GT3128333Race 12 of 1242019Acura NSX GT3 Evo215283Race 12 of 12192020Acura NSX GT3 Evo226288Race 11 of 1142021Porsche 911 GT3 R0463284Race 12 of 121212022Aston Martin Vantage GT30252898Race 12 of 12232023BMW M4 GT33573482Race 10 of 112612024Mercedes-AMG GT3 Evo0463532Race 11 of 112302025Mercedes-AMG GT3 Evo1343103Race 11 of 11205
Defunct categories
Prototype +Winners of the Prototype Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2014Chevrolet Corvette DP038349Race 13 of 13192015Chevrolet Corvette DP226309Race 12 of 1232016Chevrolet Corvette DP027314Race 12 of 1232017Cadillac DPi-V.R557310Race 12 of 12192018Cadillac DPi-V.R015277Race 12 of 123
DPi +Winners of the DPi Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2019Acura ARX-05337302Race 12 of 1252020Acura ARX-05445265Race 11 of 1112021Cadillac DPi-V.R5373407Race 12 of 12112022Acura ARX-053273432Race 12 of 1286
PC +Winners of the PC Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2014Oreca FLM09348321Race 12 of 13392015Oreca FLM09126318Race 12 of 1252016Oreca FLM09148355Race 12 of 1202017Oreca FLM09878283Race 9 of 1239
LMP3 +Winners of the LMP3 Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2021Ligier JS P3201572176Race 12 of 121862022Ligier JS P3200252002Race 12 of 12542023Ligier JS P3202462162Race 11 of 11217
GTLM +Winners of the GTLM Teams' ChampionshipSeasonTeamCarsTyrePolesWinsPointsClinched2014SRT Viper GTS-R026326Race 13 of 1392015Porsche 911 RSR146315Race 12 of 12102016Chevrolet Corvette C7.R047345Race 12 of 12172017Chevrolet Corvette C7.R135334Race 12 of 12272018Chevrolet Corvette C7.R208332Race 12 of 1262019Porsche 911 RSR237330Race 12 of 12132020Chevrolet Corvette C8.R658351Race 10 of 11322021Chevrolet Corvette C8.R7493549Race 12 of 12101
Manufacturers' Championships
Current categories
GTP +Winners of the GTP Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2023Cadillac V-Series.R2263096Race 11 of 11162024Porsche 96314133257Race 11 of 11912025Porsche 96304103134Race 11 of 1142
GTD Pro +Winners of the GTD Pro Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2022Porsche 911 GT3 R3593497Race 12 of 121902023Lexus RC F GT34293770Race 11 of 111222024Porsche 911 GT3 R (992)2353215Race 11 of 11572025Chevrolet Corvette Z06 GT3.R0193370Race 11 of 1145
GTD +Winners of the GTD Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2014Porsche 911 GT America117343Round 13 of 1332015Ferrari 458 Italia GT3012307Race 12 of 1212016Audi R8 LMS GT3028334Race 12 of 1262017Ferrari 488 GT3217352Race 12 of 1242018Lamborghini Huracán GT3139340Race 12 of 12102019Lamborghini Huracán GT3 Evo237294Race 12 of 1222020Acura NSX GT3 Evo227299Race 11 of 1182021Porsche 911 GT3 R2483425Race 12 of 121352022BMW M4 GT34393307Race 12 of 12722023BMW M4 GT335113888Race 11 of 114042024Mercedes-AMG GT3 Evo3593532Race 10 of 115742025Mercedes-AMG GT3 Evo2353363Race 11 of 1139
Defunct categories
Prototype +Winners of the Prototype Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2014Chevrolet Corvette DP4618366Round 13 of 13172015Chevrolet Corvette DP6821344Race 12 of 12262016Chevrolet Corvette DP3623338Race 12 of 12142017Cadillac DPi-V.R7618344Race 12 of 12242018Cadillac DPi-V.R3411332Race 12 of 1216
DPi +Winners of the DPi Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2019Acura ARX-053310329Race 12 of 1252020Acura ARX-05748294Race 11 of 1132021Cadillac DPi-V.R66153666Race 12 of 121132022Acura ARX-0556123718Race 12 of 1266
GTLM +Winners of the GTLM Manufacturers' ChampionshipSeasonManufacturerCarsTyrePolesWinsPointsClinched2014Porsche 911 RSR/237343Round 13 of 1332015Porsche 911 RSR/5510325Race 12 of 1262016Chevrolet Corvette C7.R2511359Race 12 of 12182017Chevrolet Corvette C7.R146348Race 12 of 1262018Ford GT358351Race 12 of 1262019Porsche 911 RSR5612358Race 10 of 12132020Chevrolet Corvette C8.R7612362Race 11 of 11142021Chevrolet Corvette C8.R108173715Race 12 of 12169
Tire Manufacturers' Championship
GTLM +Winners of the GTLM Tires Manufacturers' ChampionshipSeasonManufacturerPolesWinsPointsClinched2014111031382Race 12 of 1359201510928347Race 12 of 1224
Michelin Endurance Cup
Drivers' Championship
Current categories
GTP +Winners of the GTP Endurance Cup Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched202311240Race 11 of 112202402450Race 11 of 118202502246Race 11 of 111
LMP2 +Winners of the LMP2 Endurance Cup Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched201912449Race 12 of 125202042355Race 11 of 1118202121345Race 12 of 123202232241Race 12 of 125202302342Race 11 of 113202402349Race 11 of 117202512346Race 11 of 110
GTD Pro +Winners of the GTD Pro Endurance Cup Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched202210235Race 12 of 122202312342Race 11 of 114202400143Race 11 of 112202522452Race 11 of 115
GTD +Winners of the GTD Endurance Cup Drivers' ChampionshipSeasonDriversTeamTyrePolesWinsPointsClinched201401346Round 13 of 1313201512345Race 12 of 1210201602335Race 12 of 123201701239Race 12 of 123201800140Race 12 of 123201900037Race 12 of 122202001244Race 11 of 119202110140Race 12 of 122202200244Race 12 of 129202300039Race 11 of 113202403341Race 11 of 111202511140Race 11 of 116
Defunct categories
Prototype