Championships won
| Standings Classifications
|
Races participated
| Date | Track | Series / Event | Pos | Car |
|---|---|---|---|---|
| 1973 | ||||
| 1973/02/03 - 1973/02/04 | Daytona, FL (USA) | World Championship for Makes 24 Hours Daytona | 1 | Porsche 911 Carrera RS |
| 1973/03/24 | Sebring, FL (USA) | 12 Hours Sebring | 1 | Porsche 911 Carrera RSR |
| 1975 | ||||
| 1975/02/01 - 1975/02/02 | Daytona, FL (USA) | World Championship for Makes 24 Hours Daytona | 1 | Porsche Carrera RSR |
| 1977 | ||||
| 1977/02/05 - 1977/02/06 | Daytona, FL (USA) | World Championship for Makes 24 Hours Daytona | 1 | Porsche Carrera RSR |
| 1977/06/11 - 1977/06/12 | Le Mans (FRA) | 24 Hours Le Mans | 1 | Porsche 936 |
| 1979 | ||||
| 1979/02/03 - 1979/02/04 | Daytona, FL (USA) | World Championship for Makes 24 Hours Daytona | 1 | Porsche 935 Turbo |
| 1979/05/28 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | DNQ | Lightning-Offenhauser |
| 1981 | ||||
| 1981/03/21 | Sebring, FL (USA) | World Championship for Makes 12 Hours Sebring | 1 | Porsche 935/80 |
| 1983 | ||||
| 1983/06/18 - 1983/06/19 | Le Mans (FRA) | World Championship for Sports Cars 24 Hours Le Mans | 1 | Porsche 956 |
| 1985 | ||||
| 1985/06/15 - 1985/06/16 | Le Mans (FRA) | World Championship for Sports Cars 24 Hours Le Mans | DNC | Jaguar XJR-5 |
| 1986 | ||||
| 1986/05/31 - 1986/06/01 | Le Mans (FRA) | World Championship for Sports Cars 24 Hours Le Mans | DNC | Jaguar XJR-6 |
| 1986/05/31 - 1986/06/01 | Le Mans (FRA) | World Championship for Sports Cars 24 Hours Le Mans | DNC | Jaguar XJR-6 |
| 1988 | ||||
| 1988/05/01 | Dallas, TX (USA) | Trans-Am | 1 | Audi 200 quattro |
| 1988/06/18 | Detroit, MI (USA) | Trans-Am | 1 | Audi 200 quattro |
| 1990 | ||||
| 1990/02/03 - 1990/02/04 | Daytona, FL (USA) | IMSA GTP Championship 24 Hours Daytona | 4 (4) | Porsche 962 C |
| 1990/02/25 | Miami (Bicentennial Park), FL (USA) | IMSA GTP Championship | 5 (4) | Porsche 962 C |
| 1991 | ||||
| 1991/02/02 - 1991/02/03 | Daytona, FL (USA) | IMSA GTP Championship 24 Hours Daytona | 1 | Porsche 962 C |
| 1991/06/22 - 1991/06/23 | Le Mans (FRA) | World Championship for Sports Cars 24 Hours Le Mans | DNC | Porsche 962 C |
| 1992 | ||||
| 1992/02/01 - 1992/02/02 | Daytona, FL (USA) | IMSA GTP Championship 24 Hours Daytona | 3 | Porsche 962 C |
| 1993 | ||||
| 1993/02/21 | Miami, FL (USA) | IMSA Supercar Championship | 4 | Porsche 911 Turbo |
| 1994 | ||||
| 1994/06/18 - 1994/06/19 | Le Mans (FRA) | 24 Hours Le Mans | 1 | Dauer-Porsche 962 LM |
| 1998 | ||||
| 1998/10/10 | Braselton, GA (USA) | IMSA WSC Championship Petit Le Mans | 18 | Riley & Scott Mk III-Ford |
| 1999 | ||||
| 1999/03/20 | Sebring, FL (USA) | ALMS 12 Hours Sebring | 42 (21) | Riley & Scott Mk III-Ford |
| 1999/09/18 | Braselton, GA (USA) | ALMS Petit Le Mans | 44 (13) | Porsche 911 RSR |
| 2000 | ||||
| 2000/03/18 | Sebring, FL (USA) | ALMS 12 Hours Sebring | 13 | Porsche 996 GT3-R |
| 2002 | ||||
| 2002/02/02 - 2002/02/03 | Daytona, FL (USA) | Grand-Am Series 24 Hours Daytona | 4 (3) | Lola B2K/10-Porsche |
| 2003 | ||||
| 2003/02/01 - 2003/02/02 | Daytona, FL (USA) | Grand-Am Series 24 Hours Daytona | 5 | Fabcar FDSC/03-Porsche |
| 2003/03/01 | Homestead, FL (USA) | Grand-Am Series | 1 | Fabcar FDSC/03-Porsche |
| 2003/05/03 | Pheonix Raceway, AZ (USA) | Grand-Am Series | 1 | Fabcar FDSC/03-Porsche |
| 2003/05/18 | Barber Motorsports Park, AL (USA) | Grand-Am Series | 2 | Fabcar FDSC/03-Porsche |
| 2003/06/08 | Fontana, CA (USA) | Grand-Am Series | 2 | Fabcar FDSC/03-Porsche |
| 2003/06/22 | Watkins Glen, NY (USA) | Grand-Am Series 6 Hours Watkins Glen | 13 | Fabcar FDSC/03-Porsche |
| 2003/11/02 | Daytona, FL (USA) | Grand-Am Series | 4 | Fabcar FDSC/03-Porsche |
| 2004 | ||||
| 2004/01/31 - 2004/02/01 | Daytona, FL (USA) | Grand-Am Series 24 Hours Daytona | 41 (11) | Fabcar FDSC/03-Porsche |
| 2004/02/28 | Homestead, FL (USA) | Grand-Am Series | 4 (4) | Fabcar FDSC/03-Porsche |
| 2004/04/10 | Pheonix Raceway, AZ (USA) | Grand-Am Series | 9 (9) | Fabcar FDSC/03-Porsche |
| 2004/05/23 | Mont Tremblant (CAN) | Grand-Am Series | 31 (14) | Fabcar FDSC/03-Porsche |
| 2004/06/20 | Watkins Glen, NY (USA) | Grand-Am Series 6 Hours Watkins Glen | 10 (10) | Fabcar FDSC/03-Porsche |
| 2004/07/01 | Daytona, FL (USA) | Grand-Am Series Paul Revere 250 | 14 (12) | Fabcar FDSC/03-Porsche |
| 2004/08/07 | Lexington, OH (USA) | Grand-Am Series | 9 (9) | Fabcar FDSC/03-Porsche |
| 2004/08/13 | Watkins Glen, NY (USA) | Grand-Am Series | 19 (13) | Fabcar FDSC/03-Porsche |
| 2004/09/19 | Homestead, FL (USA) | Grand-Am Series | 12 (12) | Fabcar FDSC/03-Porsche |
| 2004/10/03 | Danville, VA (USA) | Grand-Am Series | 27 (12) | Fabcar FDSC/03-Porsche |
| 2004/10/10 | Barber Motorsports Park, AL (USA) | Grand-Am Series | 10 (9) | Fabcar FDSC/03-Porsche |
| 2004/10/31 | Fontana, CA (USA) | Grand-Am Series | 8 (8) | Fabcar FDSC/03-Porsche |
| 2005 | ||||
| 2005/02/05 - 2005/02/06 | Daytona, FL (USA) | Grand-Am Series 24 Hours Daytona | 44 (21) | Fabcar FDSC/03-Porsche |
| 2009 | ||||
| 2009/01/24 - 2009/01/25 | Daytona, FL (USA) | Grand-Am Series 24 Hours Daytona | 3 (3) | Riley Mk XI-Porsche |
| 2009/06/06 | Watkins Glen, NY (USA) | Grand-Am Series 6 Hours Watkins Glen | 6 (6) | Riley-Porsche |