| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 1991 | United States Grand Prix | Marlboro Team Roberts | Yamaha | 2 | Ret | 0 | |
| 1993 | United States Grand Prix | Cagiva Team Agostini | Cagiva | 1 | 25 | ||
| 1994 | United States Grand Prix | Cagiva Team Agostini | Cagiva | 2 | 20 | ||
| Avg. | 2 | 1.5 | 22.5 |
