| 1992 | Spanish Grand Prix · Grand Prix | Yamaha | 19 | | Classified |
| 1992 | Italian Grand Prix · Grand Prix | Yamaha | 18 | | Classified |
| 1992 | European Grand Prix · Grand Prix | Yamaha | 15 | | Classified |
| 1992 | German Grand Prix · Grand Prix | Yamaha | 12 | | Classified |
| 1992 | South African Grand Prix · Grand Prix | Yamaha | 13 | | Classified |
| 1993 | Australian motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | Malaysian motorcycle Grand Prix · Grand Prix | Yamaha | 13 | | Classified |
| 1993 | Japanese motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | Spanish motorcycle Grand Prix · Grand Prix | Yamaha | 8 | | Classified |
| 1993 | Austrian motorcycle Grand Prix · Grand Prix | Yamaha | 13 | | Classified |
| 1993 | German motorcycle Grand Prix · Grand Prix | Yamaha | 14 | | Classified |
| 1993 | Dutch TT · Grand Prix | Yamaha | — | | Ret |
| 1993 | European motorcycle Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1993 | San Marino motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | British motorcycle Grand Prix · Grand Prix | Yamaha | 7 | | Classified |
| 1993 | Czech Republic motorcycle Grand Prix · Grand Prix | Yamaha | 14 | | Classified |
| 1993 | Italian motorcycle Grand Prix · Grand Prix | Yamaha | 12 | | Classified |
| 1993 | United States motorcycle Grand Prix · Grand Prix | Yamaha | 10 | | Classified |
| 1993 | FIM motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1994 | Australian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1994 | Malaysian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | Japanese motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 15 | | Classified |
| 1994 | Spanish motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1994 | Austrian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | German motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 12 | | Classified |
| 1994 | Dutch TT · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | Italian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 10 | | Classified |
| 1994 | French motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 10 | | Classified |
| 1994 | Czech Republic motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | United States motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | DNS |
| 1994 | Argentine motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | DNS |
| 1994 | European motorcycle Grand Prix · Grand Prix | Suzuki | 13 | | Classified |