| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 1987 | Japanese Grand Prix | Team Lucky Strike Roberts | Yamaha | 1 | 15 | ||
| 1988 | Japanese Grand Prix | Cagiva Corse | Cagiva | Ret | 0 | ||
| 1989 | Japanese Grand Prix | Cagiva Corse | Cagiva | 17 | 16 | 0 | |
| 1990 | Japanese Grand Prix | 18 | Cagiva Corse | Cagiva | Ret | 17 | |
| 1992 | Japanese Grand Prix | Budweiser Team/Global Motorsports | Yamaha | 5 | 8 | ||
| Avg. | 17 | 7.3 | 13.3 |