PORSCHE RACING HISTORYStefan Edlis (USA)
1977
3 September 1977 - Trans-Am Road America - Race I - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 911 SC | TA-I | Stefan Edlis (USA) | Apollo Plastics (USA) | 41st | 30th | 26th | 10 laps - Accident |
4 September 1977 - Trans-Am Road America - Race 2 - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 911 SC | TA-I | Stefan Edlis (USA) | Apollo Plastics (USA) | 21st | 14th | 18 laps |