| 1981 | Gran Premio delle Nazioni · Grand Prix | Suzuki | — | | Ret |
| 1981 | Gran Premio di San Marino · Grand Prix | Suzuki | 17 | | Classified |
| 1982 | Nations Grand Prix · Grand Prix | Suzuki | 14 | | Classified |
| 1982 | Belgian Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1982 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1982 | British Grand Prix · Grand Prix | Suzuki | 27 | | Classified |
| 1982 | San Marino Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1983 | South African Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1983 | German Grand Prix · Grand Prix | Honda | 22 | | Classified |
| 1983 | Spanish Grand Prix · Grand Prix | Honda | 16 | | Classified |
| 1983 | Austrian Grand Prix · Grand Prix | Honda | 19 | | Classified |
| 1983 | Yugoslavian Grand Prix · Grand Prix | Honda | 18 | | Classified |
| 1983 | Dutch TT · Grand Prix | Honda | 17 | | Classified |
| 1983 | Belgian Grand Prix · Grand Prix | Honda | — | | DNS |
| 1983 | British Grand Prix · Grand Prix | Honda | — | | DNQ |
| 1983 | San Marino Grand Prix · Grand Prix | Honda | 21 | | Classified |
| 1984 | Italian Grand Prix · Grand Prix | Honda | — | | DNQ |
| 1984 | Spanish Grand Prix · Grand Prix | Honda | 9 | | Classified |
| 1984 | Austrian Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1984 | German Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1984 | French Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1984 | Yugoslavian Grand Prix · Grand Prix | Honda | — | | Ret |
| 1984 | Dutch TT · Grand Prix | Honda | — | | Ret |
| 1984 | Belgian Grand Prix · Grand Prix | Honda | 18 | | Classified |
| 1984 | British Grand Prix · Grand Prix | Honda | 18 | | Classified |
| 1984 | Swedish Grand Prix · Grand Prix | Honda | — | | Ret |
| 1984 | San Marino Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1985 | South African Grand Prix · Grand Prix | Honda | 16 | | Classified |
| 1985 | Spanish Grand Prix · Grand Prix | Honda | 10 | | Classified |
| 1985 | German Grand Prix · Grand Prix | Honda | 25 | | Classified |
| 1985 | Italian Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1985 | Austrian Grand Prix · Grand Prix | Honda | — | | DNF |
| 1985 | Yugoslavian Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1985 | Dutch TT · Grand Prix | Honda | 12 | | Classified |
| 1985 | Belgian Grand Prix · Grand Prix | Honda | — | | DNF |
| 1985 | French Grand Prix · Grand Prix | Honda | 9 | | Classified |
| 1985 | British Grand Prix · Grand Prix | Honda | 19 | | Classified |
| 1985 | Swedish Grand Prix · Grand Prix | Honda | 22 | | Classified |
| 1985 | San Marino Grand Prix · Grand Prix | Honda | 9 | | Classified |
| 1986 | Spanish Grand Prix · Grand Prix | Honda | 9 | | Classified |
| 1986 | Italian Grand Prix · Grand Prix | Honda | 8 | | Classified |
| 1986 | German Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1986 | Austrian Grand Prix · Grand Prix | Honda | 11 | | Classified |
| 1986 | Yugoslavian Grand Prix · Grand Prix | Honda | — | | Ret |
| 1986 | Belgian Grand Prix · Grand Prix | Honda | — | | Ret |
| 1986 | French Grand Prix · Grand Prix | Honda | — | | Ret |
| 1986 | British Grand Prix · Grand Prix | Honda | — | | Ret |
| 1987 | Spanish Grand Prix · Grand Prix | Honda | — | | Ret |
| 1987 | German Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1987 | Italian Grand Prix · Grand Prix | Honda | 20 | | Classified |
| 1987 | Austrian Grand Prix · Grand Prix | Honda | 13 | | Classified |
| 1987 | Yugoslavian Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1987 | Dutch TT · Grand Prix | Honda | — | | DNS |
| 1987 | British Grand Prix · Grand Prix | Honda | 15 | | Classified |
| 1987 | Swedish Grand Prix · Grand Prix | Honda | 12 | | Classified |
| 1987 | Czechoslovak Grand Prix · Grand Prix | Honda | — | | Ret |
| 1987 | San Marino Grand Prix · Grand Prix | Honda | — | | Ret |
| 1987 | Portuguese Grand Prix · Grand Prix | Honda | — | | Ret |
| 1988 | Spanish Grand Prix · Grand Prix | Paton-RS500 | — | | Ret |
| 1988 | Italian Grand Prix · Grand Prix | Paton-RS500 | — | | Ret |
| 1988 | Austrian Grand Prix · Grand Prix | Paton-RS500 | 13 | | Classified |
| 1988 | Dutch TT · Grand Prix | Paton-RS500 | 16 | | Classified |
| 1988 | Belgian Grand Prix · Grand Prix | Paton-RS500 | 16 | | Classified |
| 1988 | Yugoslavian Grand Prix · Grand Prix | Paton-RS500 | 17 | | Classified |
| 1988 | French Grand Prix · Grand Prix | Paton-RS500 | 19 | | Classified |
| 1988 | British Grand Prix · Grand Prix | Paton-RS500 | 15 | | Classified |
| 1988 | Swedish Grand Prix · Grand Prix | Paton-RS500 | — | | Ret |
| 1988 | Czechoslovak Grand Prix · Grand Prix | Paton-RS500 | 16 | | Classified |
| 1989 | French Grand Prix · Grand Prix | Honda | 15 | | Classified |
| 1989 | British Grand Prix · Grand Prix | Honda | 14 | | Classified |
| 1989 | Swedish Grand Prix · Grand Prix | Honda | 13 | | Classified |
| 1989 | Czechoslovak Grand Prix · Grand Prix | Honda | 19 | | Classified |