2002 Japanese motorcycle Grand Prix 125cc classification 125cc classification

| Rider | Manufacturer | Laps | Time_Retired | Grid |
|---|---|---|---|---|
| Arnaud Vincent | Aprilia | 18 | +46:22.971 | 2 |
| Mirko Giansanti | Honda | 18 | +1.164 | 15 |
| Manuel Poggiali | Gilera | 18 | +2.558 | 5 |
| Noboru Ueda | Honda | 18 | +3.479 | 18 |
| Simone Sanna | Aprilia | 18 | +10.188 | 19 |
| Shuhei Aoyama | Honda | 18 | +23.056 | 12 |
| Ángel Rodríguez | Aprilia | 18 | +23.653 | 13 |
| Dani Pedrosa | Honda | 18 | +33.488 | 1 |
| Lucio Cecchinello | Aprilia | 18 | +34.285 | 3 |
| Gino Borsoi | Aprilia | 18 | +47.304 | 11 |
| Stefano Perugini | Italjet | 18 | +1:01.770 | 24 |
| Klaus Nöhles | Honda | 18 | +1:06.064 | 14 |
| Joan Olivé | Honda | 18 | +1:28.936 | 25 |
| Alex Baldolini | Aprilia | 18 | +1:36.264 | 29 |
| Steve Jenkner | Aprilia | 18 | +1:56.859 | 7 |
| Héctor Barberá | Aprilia | 18 | +2:11.594 | 33 |