125 Cc Classification
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|
| 1 | Loris Capirossi | Honda | 24 | 40:15.516 | 1 | 20 |
| 2 | Fausto Gresini | Honda | 24 | +5.764 | 5 | 17 |
| 3 | Noboru Ueda | Honda | 24 | +13.068 | 3 | 15 |
| 4 | Ezio Gianola | Derbi | 24 | +16.617 | 2 | 13 |
| 5 | Ralf Waldmann | Honda | 24 | +22.713 | 8 | 11 |
| 6 | Koji Takada | Honda | 24 | +34.286 | 10 | |
| 7 | Heinz Lüthi | Honda | 24 | +34.725 | 4 | 9 |
| 8 | Alessandro Gramigni | Aprilia | 24 | +34.780 | 10 | 8 |
| 9 | Hans Spaan | Honda | 24 | +42.294 | 13 | 7 |
| 10 | Jorge Martínez | JJ Cobas | 24 | +47.291 | 9 | 6 |
| 11 | Dirk Raudies | Honda | 24 | +47.581 | 15 | 5 |
| 12 | Maurizio Vitali | Gazzaniga | 24 | +47.659 | 11 | 4 |
| 13 | Steve Patrickson | Honda | 24 | +47.939 | 3 | |
| 14 | Peter Galvin | Honda | 24 | +48.364 | 14 | 2 |
| 15 | Hisashi Unemoto | Honda | 24 | +57.904 | 1 | |
| 16 | Kazuto Sakata | Honda | 24 | +58.009 | ||
| 17 | Julián Miralles | JJ Cobas | 24 | +59.981 | ||
| 18 | Herri Torrontegui | JJ Cobas | 24 | +1:01.287 | ||
| 19 | Emilio Cuppini | Gazzaniga | 24 | +1:08.358 | ||
| 20 | Johnny Wickström | Honda | 24 | +1:15.742 | ||
| 21 | Robin Appleyard | Honda | 24 | +1:15.941 | ||
| 22 | Gimmi Bosio | Honda | 24 | +1:18.526 | ||
| 23 | Alfred Waibel | Honda | 24 | +1:26.064 | ||
| 24 | Kinya Wada | Honda | 24 | +1:26.303 | ||
| 25 | Thierry Feuz | Honda | 24 | +1:26.644 | ||
| 26 | Alan Patterson | Honda | 24 | +1:46.388 | ||
| 27 | Hubert Abold | Honda | 23 | +1 lap | ||
| 28 | Linda Walsh | Honda | 23 | +1 lap | ||
| 29 | René Dünki | Honda | 23 | +1 lap | ||
| 30 | Kenneth Fisher | Honda | 23 | +1 lap | ||
| 31 | Tony Daly | Honda | 23 | +1 lap | ||
| 32 | Tony Sims | Honda | 23 | +1 lap | ||
| 33 | Peter Scott | Honda | 22 | +2 laps | ||
| Ret | Gabriele Debbia | Aprilia | 17 | Retired | 6 | |
| Ret | Manuel Herreros | JJ Cobas | 17 | Retired | ||
| Ret | Javier Debon | JJ Cobas | 11 | Retired | ||
| Ret | Bruno Casanova | Honda | 9 | Retired | 12 | |
| Ret | Olivier Petrucciani | Aprilia | 7 | Retired | ||
| Ret | Adolf Stadler | JJ Cobas | 3 | Retired | 7 | |
Read more about this topic: 1991 Australian Motorcycle Grand Prix