Geoff Brabham (GTP)
Tom Hessert (Lights)
Scott Pruett (GTO)
Tom Kendall (GTU)
Mistrz producentów
Porsche (GTP)
Pontiac (Lights)
Lincoln-Mercury (GTO)
Chevrolet (GTU)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Daytona Daytona 24 godziny | 1988.01.30 - 01.31 | GTO | Lincoln Mercury XR4Ti - Ford | Roush Racing | |
| 2 | Sebring Sebring 12 godzin | 1988.03.19 | GTO | Lincoln Mercury XR4Ti - Ford | Protofab Racing | |
| 3 | West Palm Beach | 1988.04.24 | GTO | Lincoln Mercury XR4Ti - Ford | Roush Racing | |
| 4 | Summit Point | 1988.05.22 | GTO | Lincoln Mercury XR4Ti - Ford | Roush Racing | |
| 5 | Mid-Ohio | 1988.06.05 | GTO | Toyota Celica Turbo | All American Racers | |
| 6 | Road America | 1988.07.17 | GTO | Toyota Celica Turbo | All American Racers | |
| 7 | Portland | 1988.07.31 | GTO | Lincoln Mercury XR4Ti - Ford | Roush Racing | |
| 8 | Sears Point | 1988.08.14 | GTO | Toyota Celica Turbo | All American Racers | |
| 9 | Lime Rock Park | 1988.09.05 | GTO | Chevrolet Corvette | Protofab Racing | |
| 10 | Watkins Glen | 1988.09.25 | GTO | Toyota Celica Turbo | All American Racers | |
| 11 | Columbus | 1988.10.02 | GTO | Oldsmobile Cutlass | Hoerr Racing | |
| 12 | Del Mar | 1988.10.22 | GTO | Toyota Celica Turbo | All American Racers |
