John Mahler CART/Champ Car results at Ontario
Back to John Mahler career stats
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Points |
| 1980 | 9 | 35 | 30 | 92 | Parts Washer Service | Penske | Offenhauser | Goodyear | 24 | 0 | 0 | accident | 5 |
