1 | 1997 | Hockenheim | 66 | Konrad Motorsport | Porsche 911 GT2 | Porsche PF636T | Philipp Peter/Uwe Alzen/ | GT2 | 6 | |
2 | 1998 | Hockenheim | 66 | Konrad Motorsport | Porsche 911 GT2 | Porsche PF636T | Nick Ham | GT2 | 10 | 11 |
3 | 2004 | Hockenheim | 4 | Konrad Motorsport | Saleen S7R | Ford Cosworth 7.0 V8 | Walter Lechner Jr./Toni Seiler/ | GT | 1 |