Tom Williams NASCAR Cup Series results at Ontario
Back to Tom Williams career stats
| Year | Race # | Start | Finish | Car # | Sponsor | Engine | Owner | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1975 | 30 | 25 | 23 | 39 | Varner Realty | '74 Chevrolet | 102 | 0 | 0 | overheating | 1200 | 0 |
