PORSCHE RACING HISTORY935 JLP-4
1983
6 February 1983 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935 JLP-4 | JLP-4 | GTP | John Paul Sr. (USA) | JLP Racing (USA) | 76th | 18th | 41st | 15 laps - Withdrawn |
10 April 1983 - Road Atlanta 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 935 JLP-4 | JLP-4 | GTP | John Paul, Jr. (USA)/Rene Rodriguez (USA) | JLP Racing (USA) | 6th | 6th | 6th | 119 laps |