| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 |  Daytona Daytona 24 godziny | 1981.01.31 - 02.01 | Gr.5 Div1 | Porsche 935 K3 |  Garretson Racing | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo |  Jolly Club Italia | ||||
| 2 | Monza | 1981.04.26 | Gr.5 Div1 | Porsche 935 K3 | Weralit Racing Team | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo | Germano Nataloni | ||||
| 3 |  Silverstone | 1981.05.10 | Gr.5 Div1 | Porsche 935J | Vegla Racing Team | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo |  Lubrifilm Racing | ||||
| 4 |  Nürburgring | 1981.05.24 | Gr.5 Div1 | BMW M1 Sauber | GS Tuning | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo | Martini Racing | ||||
| 5 |  Le Mans | 1981.06.13 - 06.14 | Gr.5 Div1 | Porsche 935 K3 | Charles Ivey Racing | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo | Martini Racing | ||||
| 6 | Watkins Glen | 1981.07.12 | Gr.5 Div1 | Porsche 935 K3 | Garretson Racing | |
| Gr.5 Div2 | Lancia Beta Montecarlo Turbo | Martini Racing |
