| 1 | Rolex [24 at Daytona] | 24 Hours | All | 
EntriesPrototypesWSCWorld Sports Cars were classified with GTP cars in the final standings, but were run as a separate class in sprint races.
| Team | Car | | Drivers | Rounds |  Non-GTP prototypes raced at the 24 Hours of Daytona under this class.
| Team | Car | | Drivers | Rounds | 
GTGTSGTO cars ran as part of the GTS class in endurance races.
| Team | Car | | Drivers | Rounds | 
GTOGTO cars only raced as a separate class at sprint races.
| Team | Car | | Drivers | Rounds | 
Invitational GTProduction-based GT cars were allowed to compete in endurance races and selected sprint races as part of this class, not scoring championship points.
| Team | Car | | Drivers | Rounds | 
International GTA class for ACO-spec GT cars was introduced for the Road America and Laguna Seca races, but no cars appeared at Laguna Seca.
| Team | Car | | Drivers | Rounds | 
Race results| Rnd | Circuit | GTP/WSC Winning Team | GTP Lights Winning Team | GTS Winning Team | GTO Winning Team | GTU Winning Team | | Rnd | Circuit | GTP/WSC Winning Driver | GTP Lights Winning Driver | GTS Winning Driver | GTO Winning Driver | GTU Winning Driver | | 1 | Daytona | 
Championship standingsDrivers' ChampionshipsWSCWSC cars were counted as part of the GTP class for points standings.
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