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 | Lights | Argo JM16 - Mazda | Erie Scientific Racing | |
| 2 | Miami | 1990.02.25 | Lights | Spice SE90P - Buick |  Spice Engineering | |
| 3 | Sebring Sebring 12 godzin | 1990.03.17 | Lights | Spice SE89P - Buick | Essex Racing | |
| 4 | Road Atlanta | 1990.04.01 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 5 | West Palm Beach | 1990.04.22 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 6 | Heartland Park | 1990.05.06 | Lights | Spice SE88P - Buick | S & L Racing | |
| 7 | Lime Rock Park | 1990.05.28 | Lights | Spice SE89P - Ferrari |  Brieri Racing | |
| 8 | Mid-Ohio | 1990.06.03 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 9 | Watkins Glen | 1990.07.01 | Lights | Spice SE89P - Oldsmobile | Brieri Racing | |
| 10 | Sears Point | 1990.07.15 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 11 | Portland | 1990.07.29 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 12 | Road America | 1990.08.19 | Lights | Spice SE89P - Ferrari | Brieri Racing | |
| 13 | San Antonio | 1990.09.02 | Lights | Spice SE90P - Buick | Spice Engineering | |
| 14 | Florida | 1990.09.30 | Lights | Spice SE90P - Ferrari | David Tennyson | |
| 15 | Del Mar | 1990.11.11 | Lights | Spice SE90P - Pontiac | Comptech Racing |
