PORSCHE RACING HISTORYMichael Hammond (USA)
1985
3 February 1985 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 934 | 930 670 0162 | GTO | Michael Hammond (USA)/Don Kravig (USA)/Jim Torres (USA) | Coin Operated Racing (USA) | 64th | 24th | 39th | 86 laps - DNF |
23 March 1985 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 934 | 930 670 0162 | GTO | Rick Borlase (USA)/Michael Hammond (USA)/Jim Torres (USA) | Coin Operated Racing (USA) | 20th | 8th | 28th | 198 laps - Suspension |