| 1961 | 9º (4º Sport 1601/2000) | 27 | Triumph TR 4 S | Les Leston/Rob Slotemaker |
| 1964 | Abandono | 49 | Triumph Spitfire | Mike Rothschild/Bob Tullius
(*)-Jean-Louis Marnat/Rob Slotemaker |
| 1964 | 21º (3º Prototipo 1001/1150) | 50 | Triumph Spitfire | David Hobbs/Rob Slotemaker |
| 1965 | Abandono | 52 | Triumph Spitfire | David Hobbs/Rob Slotemaker |
| 1968 | Abandono | 37 | Alfa Romeo T 33 B/2 | Teddy Pilette/Rob Slotemaker |
| 1969 | Abandono | 36 | Alfa Romeo T 33 B/2 2.5 | Teddy Pilette/Rob Slotemaker |
(Holanda) 