| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 1991 | Japanese Grand Prix | Roberts B Team | Yamaha | 11 | 5 | ||
| 1992 | Japanese Grand Prix | Lucky Strike Suzuki | Suzuki | 2 | 15 | ||
| 1993 | Japanese Grand Prix | 5 | Cagiva Team Agostini | Cagiva | 8 | 11 | 5 |
| 1994 | Japanese Grand Prix | Cagiva Team Agostini | Cagiva | 10 | 6 | ||
| Avg. | 8 | 8.5 | 7.8 |