Bill Seifert NASCAR Cup Series results at Ontario
Back to Bill Seifert career stats
| Year | Race # | Start | Finish | Car # | Sponsor | Engine | Owner | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1971 | 5 | 18 | 14 | 45 | '69 Ford | Seifert | 187 | 0 | 0 | running | 2000 | 0 |
