PORSCHE RACING HISTORYRay Ratcliff (USA)
1983 : Daytona 24 Hours - 3rd in class
6 February 1983 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 935 JLP-2 | 009 00043 | GTP | M. L. Speer (USA)/Ken Madren (USA)/Ray Ratcliff (USA) | Pegasus III Racing (USA) | 4th | 3rd | 16th | 578 laps |
19 March 1983 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 935 JLP-2 | 009 00043 | GTP | M. L. Speer (USA)/Ken Madren (USA)/Ray Ratcliff (USA) | Pegasus III Racing (USA) | 44th | 7th | 22nd | 145 laps - Engine |