| 1993 | Australian motorcycle Grand Prix · Grand Prix | Yamaha | 11 | | Classified |
| 1993 | Malaysian motorcycle Grand Prix · Grand Prix | Yamaha | 11 | | Classified |
| 1993 | Japanese motorcycle Grand Prix · Grand Prix | Yamaha | 16 | | Classified |
| 1993 | Spanish motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | Austrian motorcycle Grand Prix · Grand Prix | Yamaha | 12 | | Classified |
| 1993 | German motorcycle Grand Prix · Grand Prix | Yamaha | 12 | | Classified |
| 1993 | Dutch TT · Grand Prix | Yamaha | 15 | | Classified |
| 1993 | European motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | San Marino motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | British motorcycle Grand Prix · Grand Prix | Yamaha | 15 | | Classified |
| 1993 | Czech Republic motorcycle Grand Prix · Grand Prix | Yamaha | — | | Ret |
| 1993 | Italian motorcycle Grand Prix · Grand Prix | Yamaha | 21 | | Classified |
| 1993 | United States motorcycle Grand Prix · Grand Prix | Yamaha | 15 | | Classified |
| 1994 | Australian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 16 | | Classified |
| 1994 | Malaysian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | Japanese motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 14 | | Classified |
| 1994 | Spanish motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | Austrian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 15 | | Classified |
| 1994 | German motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 14 | | Classified |
| 1994 | Dutch TT · Grand Prix | ROC-Yamaha | 12 | | Classified |
| 1994 | Italian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 16 | | Classified |
| 1994 | French motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | British motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1994 | Czech Republic motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1994 | United States motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1994 | Argentine motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 14 | | Classified |
| 1994 | European motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 14 | | Classified |
| 1995 | Australian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 16 | | Classified |
| 1995 | Malaysian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | — | | Ret |
| 1995 | Japanese motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 17 | | Classified |
| 1995 | Spanish motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1995 | German motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1995 | Italian motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 19 | | Classified |
| 1995 | French motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 10 | | Classified |
| 1995 | Czech Republic motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 14 | | Classified |
| 1995 | Rio de Janeiro motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 13 | | Classified |
| 1995 | Argentine motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 16 | | Classified |
| 1995 | European motorcycle Grand Prix · Grand Prix | ROC-Yamaha | 12 | | Classified |
| 1996 | Malaysian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 13 | | Classified |
| 1996 | Indonesian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 16 | | Classified |
| 1996 | Japanese motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1996 | German motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1996 | Rio de Janeiro motorcycle Grand Prix · Grand Prix | ROC Yamaha | 18 | | Classified |
| 1996 | Australian motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1997 | Malaysian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 17 | | Classified |
| 1997 | Japanese motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1997 | Spanish motorcycle Grand Prix · Grand Prix | ROC Yamaha | 19 | | Classified |
| 1997 | Italian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 16 | | Classified |
| 1997 | Austrian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 15 | | Classified |
| 1997 | French motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1997 | Dutch TT · Grand Prix | ROC Yamaha | 16 | | Classified |
| 1997 | City of Imola motorcycle Grand Prix · Grand Prix | ROC Yamaha | — | | Ret |
| 1997 | German motorcycle Grand Prix · Grand Prix | ROC Yamaha | 16 | | Classified |
| 1997 | Rio de Janeiro motorcycle Grand Prix · Grand Prix | ROC Yamaha | 16 | | Classified |
| 1997 | British motorcycle Grand Prix · Grand Prix | ROC Yamaha | 18 | | Classified |
| 1997 | Czech Republic motorcycle Grand Prix · Grand Prix | ROC Yamaha | 14 | | Classified |
| 1997 | Catalan motorcycle Grand Prix · Grand Prix | ROC Yamaha | 19 | | Classified |
| 1997 | Indonesian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 18 | | Classified |
| 1997 | Australian motorcycle Grand Prix · Grand Prix | ROC Yamaha | 19 | | Classified |