1999 | FIA Sportscar Championship | G4 Team | 1 | 0 | 0 | 0 | |
1995 | 24 Hours of Le Mans | Callaway Competition | 1 | 0 | 0 | 0 | |
1994 | 24 Hours of Le Mans | Callaway Competition | 1 | 0 | 0 | 0 | |
1993 | 24 Hours of Le Mans | Joest Porsche Racing | 1 | 0 | 0 | 0 | |
1992 | Deutsche Tourenwagen Masters | AZR | 19 | 11 | 0 | 0 | 1 |
1991 | Deutsche Tourenwagen Masters | AZR | 10 | 24 | 0 | 0 | 4 |
1991 | 24 Hours of Le Mans | Joest Porsche Racing | 1 | 0 | 0 | 0 | |
1991 | FIA Sportscar World Championship | Joest Porsche Racing | 33 | 1 | 0 | 0 | 0 |
1991 | 24 Hours of Daytona | Joest Racing | 1 | 1 | 1 | 1 | |
1990 | Deutsche Tourenwagen Masters | Schmidt Motorsport Technik | 18 | 2 | 0 | 2 | 2 |
1990 | FIA Sportscar World Championship | Joest Porsche Racing | 5 | 0 | 0 | 0 | |
1990 | 24 Hours of Le Mans | Joest Porsche Racing | 1 | 0 | 0 | 0 | |
1989 | 24 Hours of Le Mans | Joest Racing | 1 | 0 | 0 | 0 | |
1988 | 24 Hours of Le Mans | Blaupunkt-Joest Racing | 1 | 0 | 0 | 1 | |
1987 | 24 Hours of Le Mans | Joest Racing | 1 | 0 | 0 | 0 | |
1986 | 24 Hours of Le Mans | Brun Motorsport | 1 | 0 | 0 | 0 | |
1985 | 24 Hours of Le Mans | Team Labatt | 1 | 0 | 0 | 0 | |
1984 | Deutsche Tourenwagen Masters | Vogelsang Valier | 26 | 1 | 0 | 0 | 0 |
1984 | Deutsche Tourenwagen Masters | 26 | 1 | 0 | 0 | 0 | |
1983 | 24 Hours of Le Mans | Porsche Kremer Racing | 1 | 0 | 0 | 0 |