| 1972 | Abandon | 42 | Porsche 911 S | Claude Haldi/Paul Keller/Gedehem
(*)-Paul Keller |
| 1973 | 8th (1st GTS 2501/3000) | 45 | Porsche Carrera RSR | Paul Keller/Erwin Kremer/Clemens Schickentanz |
| 1973 | Didn't Qualified | 75 | Porsche 911 S | Pierre Greub/Philippe Farjon/Paul Keller |
| 1974 | Abandon | 68 | Porsche Carrera RSR | Hans Heyer/Erwin Kremer/Paul Keller |
(Switzerland) 