PORSCHE RACING HISTORYJim Adams (USA)
1990
4 February 1990 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 10 | Porsche 962 | 962-F01 | GTP | Jim Adams (USA)/John Hotchkis Jr. (USA)/John Hotchkis (USA) | Wynn's (USA) | 6th | 5th | 15th | 688 laps |
17 March 1990 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 10 | Porsche 962 | 962-F01 | GTP | John Hotchkis (USA)/Jim Adams (USA)/John Hotchkis Jr. (USA) | Hotchkis Racing (USA) | 4th | 4th | 14th | 292 laps |