| 1981 | Großer Preis von Österreich · Grand Prix | Yamaha | 12 | | Classified |
| 1981 | Großer Preis von Deutschland · Grand Prix | Yamaha | 9 | | Classified |
| 1981 | Gran Premio delle Nazioni · Grand Prix | Yamaha | — | | Ret |
| 1981 | Grand Prix de France Moto · Grand Prix | Yamaha | 10 | | Classified |
| 1981 | Yu Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1981 | Dutch TT Assen · Grand Prix | Yamaha | 13 | | Classified |
| 1981 | Grand Prix Moto · Grand Prix | Yamaha | 8 | | Classified |
| 1981 | Gran Premio di San Marino · Grand Prix | Yamaha | 8 | | Classified |
| 1981 | Marlboro British Grand Prix · Grand Prix | Yamaha | 5 | | Classified |
| 1981 | Finnish GP · Grand Prix | Yamaha | 6 | | Classified |
| 1981 | Swedish TT · Grand Prix | Yamaha | 6 | | Classified |
| 1982 | Argentine Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1982 | Austrian Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1982 | French Grand Prix · Grand Prix | Yamaha | — | | WD |
| 1982 | Spanish Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1982 | Nations Grand Prix · Grand Prix | Yamaha | 9 | | Classified |
| 1982 | Dutch TT · Grand Prix | Yamaha | 9 | | Classified |
| 1982 | Belgian Grand Prix · Grand Prix | Yamaha | 10 | | Classified |
| 1982 | Yugoslavian Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1982 | British Grand Prix · Grand Prix | Yamaha | 8 | | Classified |
| 1982 | Swedish Grand Prix · Grand Prix | Yamaha | 4 | | Classified |
| 1982 | San Marino Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1982 | German Grand Prix · Grand Prix | Yamaha | 6 | | Classified |
| 1983 | South African Grand Prix · Grand Prix | Yamaha | 4 | | Classified |
| 1983 | French Grand Prix · Grand Prix | Yamaha | 6 | | Classified |
| 1983 | Nations Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1983 | German Grand Prix · Grand Prix | Yamaha | 8 | | Classified |
| 1983 | Spanish Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1983 | Austrian Grand Prix · Grand Prix | Yamaha | 6 | | Classified |
| 1983 | Yugoslavian Grand Prix · Grand Prix | Yamaha | 6 | | Classified |
| 1983 | Dutch TT · Grand Prix | Yamaha | 7 | | Classified |
| 1983 | Belgian Grand Prix · Grand Prix | Yamaha | 6 | | Classified |
| 1983 | British Grand Prix · Grand Prix | Yamaha | 5 | | Classified |
| 1983 | Swedish Grand Prix · Grand Prix | Yamaha | 4 | | Classified |
| 1983 | San Marino Grand Prix · Grand Prix | Yamaha | 6 | | Classified |