| Year | Grand Prix | No. | Team | Maufacturer | Grid | Position | Pts Points |
|---|---|---|---|---|---|---|---|
| 2003 | Pacific Grand Prix | 6 | Pramac Honda | Honda | 2 | DSQ | 0 |
| 2004 | Japanese Grand Prix | 6 | Camel Honda | Honda | 1 | 1 | 25 |
| 2005 | Japanese Grand Prix | 6 | Konica Minolta Honda | Honda | 4 | 3 | 16 |
| 2006 | Japanese Grand Prix | 6 | Konica Minolta Honda | Honda | 18 | 10 | 6 |
| 2007 | Japanese Grand Prix | 6 | Dunlop Yamaha Tech 3 | Yamaha | 16 | 12 | 4 |
| Avg. | 8.2 | 6.5 | 12.8 |