| 1983 | San Marino Grand Prix · Grand Prix | Suzuki | 15 | | Classified |
| 1984 | South African Grand Prix · Grand Prix | Honda | 6 | | Classified |
| 1984 | Italian Grand Prix · Grand Prix | Honda | 10 | | Classified |
| 1984 | Spanish Grand Prix · Grand Prix | Honda | — | | Ret |
| 1984 | Austrian Grand Prix · Grand Prix | Honda | 16 | | Classified |
| 1984 | German Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1984 | French Grand Prix · Grand Prix | Honda | 7 | | Classified |
| 1984 | Yugoslavian Grand Prix · Grand Prix | Honda | — | | Ret |
| 1984 | Dutch TT · Grand Prix | Honda | — | | Ret |
| 1984 | Belgian Grand Prix · Grand Prix | Honda | — | | Ret |
| 1984 | British Grand Prix · Grand Prix | Honda | 25 | | Classified |
| 1984 | Swedish Grand Prix · Grand Prix | Honda | — | | DNQ |
| 1984 | San Marino Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1985 | South African Grand Prix · Grand Prix | Suzuki | — | | DNF |
| 1985 | Spanish Grand Prix · Grand Prix | Suzuki | — | | DNF |
| 1985 | Italian Grand Prix · Grand Prix | Suzuki | — | | DNF |
| 1985 | Austrian Grand Prix · Grand Prix | Suzuki | — | | DNF |
| 1985 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 21 | | Classified |
| 1987 | Italian Grand Prix · Grand Prix | Honda | 15 | | Classified |
| 1987 | Yugoslavian Grand Prix · Grand Prix | Honda | 18 | | Classified |
| 1987 | Czechoslovak Grand Prix · Grand Prix | Honda | 15 | | Classified |
| 1987 | San Marino Grand Prix · Grand Prix | Honda | — | | Ret |
| 1988 | Italian Grand Prix · Grand Prix | GP500 | — | | Ret |
| 1988 | German Grand Prix · Grand Prix | GP500 | — | | Ret |
| 1988 | Austrian Grand Prix · Grand Prix | GP500 | 14 | | Classified |
| 1989 | Spanish Grand Prix · Grand Prix | Cagiva | 11 | | Classified |
| 1989 | Nations Grand Prix · Grand Prix | Cagiva | — | | Ret |
| 1989 | Yugoslavian Grand Prix · Grand Prix | Cagiva | 13 | | Classified |