Joachim Winkelhock
| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| 1 |  Zolder | 1988.04.03 | Reynard 883 - Volkswagen | WTS Liqui Moly Equipe | |
| 2 | Hockenheimring | 1988.04.24 | Reynard 883 - Volkswagen | WTS Liqui Moly Equipe | |
| 3 | Nürburgring | 1988.05.01 | Reynard 883 - Volkswagen | WTS Liqui Moly Equipe | |
| 4 |  Brno | 1988.05.22 | Dallara F388 - Volkswagen |  Style Auto Racing Team | |
| 5 | Hockenheimring | 1988.05.29 | Reynard 883 - Volkswagen | BSR Volkswagen Motorsport | |
| 6 | Mainz-Finthen | 1988.06.05 | Martini Mk 55 - Volkswagen | Josef Kaufmann Racing | |
| 7 | Wunstorf | 1988.07.17 | Reynard 883 - Volkswagen | WTS Liqui Moly Equipe | |
| 8 |  Salzburgring | 1988.08.28 | Dallara F388 - Volkswagen | Schübel Rennsport | |
| 9 | Nürburgring | 1988.09.04 | Reynard 883 - Volkswagen | BSR Volkswagen Motorsport | |
| 10 |  Hungaroring | 1988.09.18 | Martini Mk 55 - Volkswagen | Josef Kaufmann Racing | |
| 11 | Hockenheimring | 1988.10.15 | Reynard 883 - Volkswagen | Malte Bongers Motorsport |
| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| - | Hockenheimring | 1988.03.19 | Reynard 863 - Volkswagen | Team Bernal Torantriebe | |
| - | Hockenheimring | 1988.03.26 | Reynard 883 - Volkswagen | WTS Liqui Moly Equipe | |
| - | Hockenheimring | 1988.09.10 | Reynard 873 - Volkswagen | Richard Hamann | |
| - | Nürburgring | 1988.10.23 | Ralt RT 30 - Volkswagen | Arnold Wagner | |
| - | Hockenheimring | 1988.11.05 | Reynard 883 - Volkswagen | WTS Racing | |
| - | Hockenheimring | 1988.11.19 | Dallara F388 - Volkswagen | Walter Lechner Racing School |
