1 | 1971 | Dutch Grand Prix | 30 | Stichting Autoraces Nederland | 21 | 8 | ||
2 | 1973 | Dutch Grand Prix | 26 | Frank Williams Racing Cars | 20 | 6 | ||
3 | 1973 | Austrian Grand Prix | 26 | Frank Williams Racing Cars | Iso Marlboro IR | Ford Cosworth Cosworth DFV | 23 | 9 |
4 | 1973 | Italian Grand Prix | 26 | Frank Williams Racing Cars | 23 | DNF | ||
5 | 1974 | Belgian Grand Prix | 21 | Frank Williams Racing Cars | Iso Marlboro FW | Ford Cosworth Cosworth DFV | 30 | 14 |
6 | 1975 | Dutch Grand Prix | 31 | HB Bewaking Team Ensign | Ford Cosworth Cosworth DFV | 22 | 10 | |
7 | 1975 | French Grand Prix | 31 | HB Bewaking Team Ensign | Ford Cosworth Cosworth DFV | 22 | 15 | |
8 | 1975 | German Grand Prix | 19 | HB Bewaking Team Ensign | Ford Cosworth Cosworth DFV | 24 | 6 |