Championships won
| Standings Classifications
|
Races participated
| Date | Track | Series / Event | Pos | Car |
|---|---|---|---|---|
| 1978 | ||||
| 1978/06/18 | Milwaukee, WI (USA) | USAC National Championship | 1 | Penske-Cosworth |
| 1978/07/23 | Hampton, GA (USA) | USAC National Championship | 1 | Penske-Cosworth |
| 1978/10/07 | Brands Hatch (GBR) | USAC National Championship | 1 | Penske-Cosworth |
| 1979 | ||||
| 1979/03/11 | Pheonix Raceway, AZ (USA) | Champ Car World Series | 2 | Penske PC7-Cosworth |
| 1979/04/22 | Hampton, GA (USA) | Champ Car World Series | 5 | Penske PC6-Cosworth |
| 1979/04/22 | Hampton, GA (USA) | Champ Car World Series | 2 | Penske PC6-Cosworth |
| 1979/05/28 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 1 | Penske PC6-Cosworth |
| 1979/08/19 | Trenton, NJ (USA) | Champ Car World Series | 1 | Penske PC7-Cosworth |
| 1979/09/30 | Hampton, GA (USA) | Champ Car World Series | 1 | Penske PC7-Cosworth |
| 1980 | ||||
| 1980/10/26 | Mexico City (MEX) | Champ Car World Series | 1 | Penske PC9-Cosworth |
| 1981 | ||||
| 1981/06/21 | Hampton, GA (USA) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1981/06/21 | Hampton, GA (USA) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1981/08/30 | Riverside, CA (USA) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1981/09/20 | Brooklyn, MI (USA) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1981/10/04 | Watkins Glen, NY (USA) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1981/10/18 | Mexico City (MEX) | Champ Car World Series | 1 | Penske PC9B-Cosworth |
| 1982 | ||||
| 1982/03/28 | Pheonix Raceway, AZ (USA) | Champ Car World Series | 1 | Penske PC10-Cosworth |
| 1982/05/01 | Hampton, GA (USA) | Champ Car World Series | 1 | Penske PC10-Cosworth |
| 1982/08/15 | Pocono, PA (USA) | Champ Car World Series | 1 | Penske PC10-Cosworth |
| 1982/08/29 | Riverside, CA (USA) | Champ Car World Series | 1 | Penske PC10-Cosworth |
| 1983 | ||||
| 1983/09/18 | Brooklyn, MI (USA) | Champ Car World Series | 1 | Penske PC10B-Cosworth |
| 1984 | ||||
| 1984/05/27 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 1 | March 84C-Cosworth |
| 1985 | ||||
| 1985/08/18 | Pocono, PA (USA) | Champ Car World Series | 1 | March 85C-Cosworth |
| 1987 | ||||
| 1987/08/16 | Pocono, PA (USA) | Champ Car World Series | 1 | March 86C-Chevrolet |
| 1988 | ||||
| 1988/05/29 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 1 | Penske PC17-Chevrolet |
| 1988/06/05 | Milwaukee, WI (USA) | Champ Car World Series | 1 | Penske PC17-Chevrolet |
| 1989 | ||||
| 1989/04/08 | Pheonix Raceway, AZ (USA) | Champ Car World Series | 1 | Penske PC18-Chevrolet |
| 1989/06/04 | Milwaukee, WI (USA) | Champ Car World Series | 1 | Penske PC18-Chevrolet |
| 1989/10/15 | Laguna Seca, CA (USA) | Champ Car World Series Grand Prix Monterey | 1 | Penske PC18-Chevrolet |
| 1990 | ||||
| 1990/04/08 | Pheonix Raceway, AZ (USA) | Champ Car World Series | 1 | Penske PC19-Chevrolet |
| 1990/05/27 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 5 | Penske PC19-Chevrolet |
| 1991 | ||||
| 1991/05/26 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 1 | Penske PC20-Chevrolet |
| 1991/08/04 | Brooklyn, MI (USA) | Champ Car World Series | 1 | Penske PC20-Chevrolet |
| 1992 | ||||
| 1992/05/24 | Indianapolis, IN (USA) | Champ Car World Series Indianapolis 500 | 26 | Penske-Chevrolet |