Frank Harmstad (USA)
1980
5 July 1980 - Watkins Glen 6 Hours - World Championship for Makes
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
26 | Porsche 911 SC Targa | Trans Am | Robert Overby (USA)/Frank Harmstad (USA) | Robert Overby | 27th | 12th | 33rd | 72 laps - Engine |