| Indianapolis 500 Career Summary | ||||||||
| Starts | Total Laps | Poles | Victories | Top 5 | Top 10 | Races led | Laps led | Winnings |
| 15 | 2342 | 6 | 4 | 9 | 9 | 9 | 429 | $4,299,400 |
| Year | Fin. | St. | Car# | Car Name/Entrant* | C/E/T | Qual. Spd. | Run/Out | Laps | Led | Winnings |
| 1978 | 23 | 3 | 71 | CAM2 Motor Oil | Penske/Cosworth | 200.070 | Engine | 103 | 0 | $22,396 |
| 1979 | 1 | 1 | 9 | The Gould Charge | Penske/Cosworth | 193.730 | 158.899 | 200 | 25 | $270,401 |
| 1980 | 5 | 6 | 1 | The Gould Charge | Penske/Cosworth | 187.490 | Running | 199 | 10 | $45,505 |
| 1981 | 30 | 22 | 6 | The Gould Charge | Penske/Cosworth | 194.010 | Pit fire | 58 | 1 | $28,560 |
| 1982 | 2 | 1 | 1 | The Gould Charge | Penske/Cosworth | 207.000 | 162.026 | 200 | 77 | $215,859 |
| 1983 | 3 | 3 | 2 | Pennzoil Penske | Penske/Cosworth | 204.300 | 161.799 | 200 | 2 | $135,086 |
| 1984 | 1 | 3 | 6 | Pennzoil Z-7 | March/Cosworth | 207.840 | 163.612 | 200 | 119 | $434,061 |
| 1985 | 21 | 10 | 1 | Pennzoil Z-7 | March/Cosworth | 209.790 | Linkage | 122 | 0 | $67,333 |
| 1986 | 3 | 1 | 4 | Pennzoil Z-7 | March/Cosworth | 216.820 | 170.691 | 200 | 76 | $332,263 |
| 1987 | 23 | 3 | 8 | Pennzoil Z-7 | March/Chevrolet Indy | 211.460 | Coil wire | 75 | 0 | $112,463 |
| 1988 | 1 | 1 | 5 | Pennzoil Z-7 | Penske/Chevrolet Indy | 219.190 | 144.809 | 200 | 89 | $809,853 |
| 1989 | 23 | 1 | 4 | Pennzoil Z-7 | Penske/Chevrolet Indy | 223.880 | Engine | 113 | 0 | $267,903 |
| 1990 | 5 | 2 | 2 | Pennzoil Z-7 | Penske/Chevrolet Indy | 224.210 | Running | 198 | 0 | $201,610 |
| 1991 | 1 | 1 | 3 | Marlboro | Penske/Chevrolet Indy A | 224.113 | 176.457 | 200 | 30 | $1,219,704 |
| 1992 | 26 | 9 | 4 | Marlboro | Penske/Chevrolet Indy B | 224.590 | Accident | 74 | 0 | $136,403 |
| Indianapolis 500 Career Summary | ||||||||
| Starts | Total Laps | Poles | Victories | Top 5 | Top 10 | Races led | Laps led | Winnings |
| 15 | 2342 | 6 | 4 | 9 | 9 | 9 | 429 | $4,299,400 |