PORSCHE RACING HISTORY910
1975
15 June 1975 - Interserie Mainz-Finthen - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 910 | 910-019 | Div.II | Werner Muschak (D) | Akamot (D) | 15th | 12th |
20 July 1975 - Interserie Hockenheim Südwestpokal - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 442 | Porsche 910 | 910-019 | Div.II | Werner Muschak (D) | Akamot (D) | 16th | 13th |