J.D. McDuffie NASCAR Cup Series results at Islip
Back to J.D. McDuffie career stats
| Year | Race # | Start | Finish | Car # | Sponsor | Engine | Owner | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1966 | 33 | 24 | 21 | 70 | '64 Ford | McDuffie | 77 | 0 | 0 | transmission | 100 | 0 | |||
| 1968 | 26 | 18 | 19 | 70 | '67 Buick | McDuffie | 127 | 0 | 0 | brakes | 100 | 0 | |||
| 1971 | 30 | 16 | 16 | 70 | '69 Mercury | McDuffie | 132 | 0 | 0 | rear end | 230 | 0 |
