Geoff Brabham (GTP)
Tomás López (Lights)
Dorsey Schroeder (GTO)
Lance Stewart (GTU)
Mistrz producentów
Nissan (GTP)
Buick (Lights)
Mercury (GTO)
Mazda (GTU)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Daytona Daytona 24 godziny | 1990.02.03 - 02.04 | GTP | Jaguar XJR-12 |  Castrol Jaguar | |
| 2 | Miami | 1990.02.25 | GTP | Nissan GTP ZX-T | Nissan Performance | |
| 3 | Sebring Sebring 12 godzin | 1990.03.17 | GTP | Nissan GTP ZX-T | Nissan Performance | |
| 4 | Road Atlanta | 1990.04.01 | GTP | Nissan GTP ZX-T | Nissan Performance | |
| 5 | West Palm Beach | 1990.04.22 | GTP | Nissan GTP ZX-T | Nissan Performance | |
| 6 | Heartland Park | 1990.05.06 | GTP | Eagle HF89 - Toyota | All American Racers | |
| 7 | Lime Rock Park | 1990.05.28 | GTP | Jaguar XJR-10 | Castrol Jaguar | |
| 8 | Mid-Ohio | 1990.06.03 | GTP | Nissan NPT 90 | Nissan Performance | |
| 9 | Watkins Glen | 1990.07.01 | GTP | Nissan NPT 90 | Nissan Performance | |
| 10 | Sears Point | 1990.07.15 | GTP | Eagle HF89 - Toyota | All American Racers | |
| 11 | Portland | 1990.07.29 | GTP | Jaguar XJR-10 | Castrol Jaguar | |
| 12 | Road America | 1990.08.19 | GTP | Nissan NPT 90 | Nissan Performance | |
| 13 | San Antonio | 1990.09.02 | GTP | Eagle HF89 - Toyota | All American Racers | |
| 14 | Florida | 1990.09.30 | GTP | Porsche 962C | Dyson Racing | |
| 15 | Del Mar | 1990.11.11 | GTP | Eagle HF89 - Toyota | All American Racers |
