PORSCHE RACING HISTORYMargie Smith-Haas (USA)
1979
2 September 1979 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 52 | Porsche 914/4 | GTU | Wayne Baker (USA)/Paul Haas (USA)/Margie Smith-Haas (USA) | Personalized Porsche (USA) | 27th | 11th | 40th | 85 laps |