| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| 1 |  Charlotte | 1981.05.17 | Chevrolet Corvette |  Swiss Chalet | |
| 2 | Portland | 1981.06.14 | Jaguar XJS | Group 44 | |
| 3 | Lime Rock Park | 1981.07.04 | Chevrolet Corvette | Pickett Racing | |
| 4 | Road America | 1981.07.26 | Porsche 930 | Porsche Audi North West | |
| 5 | Brainerd | 1981.08.09 | Jaguar XJS | Group 44 | |
| 6 |  Trois-Rivières | 1981.09.06 | Chevrolet Corvette | Swiss Chalet | |
| 7 | Mosport Park | 1981.09.12 | Jaguar XJS | Group 44 | |
| 8 | Laguna Seca | 1981.10.11 | Chevrolet Camaro | Cooke-Woods Racing | |
| 9 | Sears Point | 1981.10.25 | Ford Mustang | Coors-Polyglycoat |