PORSCHE RACING HISTORYJohn O'Steen (USA)
1977
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 38 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | John Paul Sr. (USA)/John O'Steen (USA)/Bob Hagestad (USA) | John Paul (USA) | 34th | 22nd | 35th | 217 laps - DNF |
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 38 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | John Paul Sr. (USA)/John O'Steen (USA)/John Graves (USA)/Bob Hagestad (USA) | John Paul Sr. (USA) | 69th | 41st | 9th | 13 laps - Engine |