| 1 | 1998 | Marlboro GP of Japan | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 1 | 1 |
| 2 | 1998 | Marlboro Malaysian GP | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 2 | 3 |
| 3 | 1998 | GP Marlboro de España | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 4 | 3 |
| 4 | 1998 | Gran Premio Q8 d''Italia | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 3 | 2 |
| 5 | 1998 | Grand Prix de France | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 4 | 5 |
| 6 | 1998 | GP Comunidad de Madrid | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 10 | 6 |
| 7 | 1998 | Rizla Dutch TT | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 4 | 2 |
| 8 | 1998 | British Grand Prix | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 3 | 6 |
| 9 | 1998 | Polini Motorrad GP Deutschland | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 1 | 2 |
| 10 | 1998 | Grand Prix Ceske Republiky | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 2 | 1 |
| 11 | 1998 | Gran Premio Cirio Citta di Imola | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 4 | 3 |
| 12 | 1998 | Qantas Australian Grand Prix | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 2 | 8 |
| 13 | 1998 | GP Marlboro de Argentina | 6 | Marlboro Team Kanemoto | Honda NSR | Honda V4 | 14 | 5 |
| 14 | 1999 | Marlboro Grand Prix of Japan | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 5 | 9 |
| 15 | 1999 | Gran Premio Marlboro de España | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 4 | 2 |
| 16 | 1999 | Gran Premio d''Italia IP | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 13 | 2 |
| 17 | 1999 | Rizla Dutch TT | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 5 | 5 |
| 18 | 1999 | British Grand Prix | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 3 | 4 |
| 19 | 1999 | Grand Prix Ceske Republiky | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 3 | 4 |
| 20 | 1999 | Gran Premio Breil Citta di Imola | 2 | Marlboro Yamaha Team | Yamaha YZR | Yamaha V4 | 7 | 3 |
