PORSCHE RACING HISTORYBob Harmon (USA)
1980
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 | 930 890 0024 | GTX | Buzz Marcus (USA)/Bob Harmon (USA)/Marty Hinze (USA) | Dick Barbour Racing (USA) | 60th | 16th | 16th | 52 laps - Accident |
15 June 1980 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 72 | Porsche 935 | 930 890 0024 | IMSA | Michael Sherwin (USA)/Robert Kirby (USA)/Bob Harmon (USA) | Dick Barbour - Wynn's International (USA) | DNF | 39th | 7 laps - Collision/Lost Wheel |