| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| 1 |  Nürburgring | 1988.05.01 | Porsche 962C | Joest Racing | |
| 2 | Hockenheimring | 1988.05.29 | Sauber C9/88 - Mercedes | Team Sauber Mercedes | |
| 3 | Norisring | 1988.06.26 | Sauber C9/88 - Mercedes | Team Sauber Mercedes | |
| 4 | Diepholz | 1988.08.07 | Sauber C9/88 - Mercedes | Team Sauber Mercedes | |
| 5 | Nürburgring | 1988.09.25 | Porsche 962C | Porsche AG |
