PORSCHE RACING HISTORYJohn Hulen (USA)
1985
25 August 1985 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 Carrera RSR | GTO | John Hulen (USA)/Ron Coupland (USA) | Coupland-Hulen Racing (USA) | 30th | 7th | 46th | 76 laps - DNF |
5 October 1985 - Columbus IMSA GT - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 Carrera RSR | GTO | John Hulen (USA) | John Hulen (USA) | 43rd | 21st | 22nd | 0 laps - DNF |
1 December 1985 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 Carrera RSR | GTO | John Hulen (USA)/Ron Coupland (USA) | John Hulen (USA) | 43rd | 12th | 63rd | 48 laps - DNF |