PORSCHE RACING HISTORYDominique Martin (CH)
1970 : Interserie Norisring - 1st in class
28 June 1970 - Interserie Norisring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 53 | Porsche 907 | 907-024 | SRP2.0 | Dominique Martin (CH) | Racing Team Zitro | 10th | 1st | 18th | 73 laps |
5 July 1970 - Interserie Hockenheim Südwestpokal - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 917 K | 917-025 | Dominique Martin (CH) | Zitro Racing Cars (F) | 11th | 13th | 29 laps |