| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 1992 | Japanese Grand Prix | Team ROC Banco | ROC Yamaha | DNQ | 0 | ||
| 1993 | Japanese Grand Prix | 13 | Team ROC | ROC Yamaha | 13 | 12 | 4 |
| 1995 | Japanese Grand Prix | Padgett's-Tube Riders | Harris Yamaha | 8 | 8 | ||
| 1996 | Japanese Grand Prix | Padgett's Racing Team | Yamaha | 14 | 2 | ||
| Avg. | 13 | 11.3 | 4.7 |