2009
| | ADAC GT Masters | | Position: no position | 2 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Fischer-Racing | | Car: Ford GT |
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2008
| | ADAC GT Masters | | Position: 3 (48 points) | 14 races. 0 wins. 0 pole positions. 2 podiums. 0 fastest laps.
| | Team: Argo Racing | | Car: Lamborghini |
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2007
| | ADAC GT Masters | | Position: 10 (19 points) | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Complete results needed. |
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2005
| | FIA GT - GT1 | | Position: no position | 3 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Konrad Motorsport | | Car: Saleen S7-R |
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2004
| | FIA GT | | Position: 56 (3 points) | 2 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Konrad Motorsport, Graham Nash Motorsport | | Car: Saleen S7-R |
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2003
| | V8Star Germany | | Position: 6 (172 points) | 9 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: GAG Racing Team |
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2002
| | V8Star Germany | | Position: 17 (139 points) | 10 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Becker Motorsport |
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2001
| | V8Star Germany | | Position: 12 (135 points) | 9 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Grohs Motorsport |
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2000
| | FIA GT | | Position: 32 (2 points) | 2 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Marcos International Racing | | Car: Marcos Mantara LM600 (Chevrolet) |
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| | | Belcar | | Position: 88 (54 points) | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Car: Marcos Mantara LM600 (Chevrolet) | | Complete results needed. |
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1999
| | Porsche Carrera Cup Germany | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Harald Grohs Motorsport |
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| | | Sports Racing World Cup - SR1 | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: G4 Team | | Car: Gebhardt G4 (Audi) |
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1998
| | FIA GT - GT2 | | Position: 13 (13 points) | 8 races. 0 wins. 0 pole positions. 3 podiums. ? fastest laps. | | Team: Marcos Racing International | | Car: Marcos LM600 | | Complete results needed. |
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1997
| | FIA GT - GT2 | | Position: 11 (13 points) | 9 races. 0 wins. 1 pole position. 2 podiums. ? fastest laps. | | Team: Marcos Racing International | | Car: Marcos LM600 (Chevrolet) | | Complete results needed. |
| |
| | | Le Mans 24h - GT2 class | |
| Race position: no position. | | Team: Team Marcos Racing International | | Car: Marcos Mantara LM600 (Chevrolet) | | Complete results needed. |
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1996
| | Global GT Championship | | Position: 143 (4 points) | 3 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: RWS, Seikel Motorsport | | Car: Porsche 911 GT2 |
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1995
| | Porsche Carrera Cup Germany | | Position: 6 (76 points) | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Complete results needed. |
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1994
| | Porsche Carrera Cup Germany | | Position: 4 (92 points) | 8 races. 0 wins. 0 pole positions. 1 podium. 0 fastest laps.
| | Team: Eichin Racing | | Car: Porsche Carrera |
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| | | DTM | | Position: no position | 7 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Linder | | Car: BMW E 36 |
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1993
| | DTM | | Position: 14 (15 points) | 20 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Linder | | Car: BMW M3 Sport Evolution |
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| | | Porsche Carrera Cup Germany | | Position: no position | ? races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: Porsche Carrera | | Complete results needed. |
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1992
| | DTM | | Position: 20 (3 points) | 21 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Auto Maass BMW | | Car: BMW M3 Sport Evolution |
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1991
| | DTM | | Position: no position | 16 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Team Vanicek / item | | Car: BMW M3 Sport Evolution |
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| | | Sportscar World Championship | | Position: 55 (2 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Konrad Motorsport | | Car: Porsche 962C |
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1990
| | Porsche Carrera Cup Germany | | Position: 22 (1 points) | ? races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: Porsche Carrera 2 | | Complete results needed. |
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1989
| | DTM | | Position: 27 (30 points) | 20 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Team SM | | Car: Mercedes 190E 2.3-16 |
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1988
| | DTM | | Position: 34 (13 points) | 12 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: BMW M3 |
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1987
| | Porsche 944 Turbo Cup | | Position: 6 (225 points) | 10 races. 1 win. 1 pole position. 1 podium. 0 fastest laps.
| | Car: Porsche 944 Turbo |
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1986
| | Porsche 944 Turbo Cup | | Position: 7 (147 points) | 7 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: Porsche 944 Turbo |
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1985
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1984
| | Formula 3 Germany | | Position: 13 (13 points) | 6 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Josef Kaufmann Racing | | Car: Martini MK42 (Volkswagen) |
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1983
| | Formula Ford 1600 Germany | | Position: 1 | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Team: Wolber Motorsport Service | | Car: Lola T642E | | Complete results needed. |
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