| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 1965 | Dutch TT | MV Agusta | 2 | 6 | |||
| 1966 | Dutch TT | MV Agusta | 2 | 6 | |||
| 1967 | Dutch TT | MV Agusta | 2 | 6 | |||
| 1968 | Dutch TT | MV Agusta | 1 | 8 | |||
| 1969 | Dutch TT | MV Agusta | 1 | 15 | |||
| 1970 | Dutch TT | MV Agusta | 1 | 15 | |||
| 1971 | Dutch TT | MV Agusta | 1 | 15 | |||
| 1972 | Dutch TT | MV Agusta | 1 | 15 | |||
| 1974 | Dutch TT | 1 | 15 | ||||
| 1975 | Dutch TT | Yamaha Motor NV | Yamaha | 2 | 12 | ||
| 1976 | Dutch TT | 11 | Team API Marlboro | Suzuki | Ret | 0 | |
| 1977 | Dutch TT | 11 | Team API Marlboro | Yamaha | Ret | 0 | |
| Avg. | 0 | 1.4 | 11.3 |
