125cc Classification
| Pos | No | Rider | Manufacturer | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 29 | Andrea Iannone | Aprilia | 22 | 41:10.494 | 8 | 25 |
| 2 | 18 | Nicolás Terol | Aprilia | 22 | +2.245 | 6 | 20 |
| 3 | 33 | Sergio Gadea | Aprilia | 22 | +2.330 | 5 | 16 |
| 4 | 60 | Julián Simón | Aprilia | 22 | +2.331 | 1 | 13 |
| 5 | 93 | Marc Márquez | KTM | 22 | +2.356 | 12 | 11 |
| 6 | 94 | Jonas Folger | Aprilia | 22 | +2.531 | 3 | 10 |
| 7 | 17 | Stefan Bradl | Aprilia | 22 | +10.795 | 9 | 9 |
| 8 | 38 | Bradley Smith | Aprilia | 22 | +10.824 | 7 | 8 |
| 9 | 11 | Sandro Cortese | Derbi | 22 | +14.984 | 14 | 7 |
| 10 | 35 | Randy Krummenacher | Aprilia | 22 | +15.089 | 4 | 6 |
| 11 | 45 | Scott Redding | Aprilia | 22 | +16.427 | 10 | 5 |
| 12 | 12 | Esteve Rabat | Aprilia | 22 | +16.515 | 17 | 4 |
| 13 | 14 | Johann Zarco | Aprilia | 22 | +27.455 | 13 | 3 |
| 14 | 6 | Joan Olivé | Derbi | 22 | +27.712 | 16 | 2 |
| 15 | 73 | Takaaki Nakagami | Aprilia | 22 | +28.411 | 21 | 1 |
| 16 | 24 | Simone Corsi | Aprilia | 22 | +33.697 | 23 | |
| 17 | 71 | Tomoyoshi Koyama | Loncin | 22 | +42.581 | 15 | |
| 18 | 16 | Cameron Beaubier | KTM | 22 | +48.847 | 22 | |
| 19 | 42 | Alberto Moncayo | Aprilia | 22 | +49.532 | 25 | |
| 20 | 77 | Dominique Aegerter | Derbi | 22 | +49.772 | 18 | |
| 21 | 53 | Jasper Iwema | Honda | 22 | +1:02.666 | 27 | |
| 22 | 50 | Sturla Fagerhaug | KTM | 22 | +1:15.215 | 28 | |
| 23 | 43 | Johnny Rosell | Aprilia | 22 | +1:21.568 | 26 | |
| 24 | 87 | Luca Marconi | Aprilia | 22 | +1:37.919 | 31 | |
| 25 | 31 | Jordi Dalmau | Honda | 21 | +1 Lap | 34 | |
| 26 | 10 | Luca Vitali | Aprilia | 20 | +2 Laps | 33 | |
| Ret | 32 | Lorenzo Savadori | Aprilia | 16 | Accident | 24 | |
| Ret | 39 | Luis Salom | Honda | 13 | Retirement | 31 | |
| Ret | 99 | Danny Webb | Aprilia | 11 | Retirement | 11 | |
| Ret | 8 | Lorenzo Zanetti | Aprilia | 10 | Retirement | 19 | |
| Ret | 44 | Pol Espargaró | Derbi | 5 | Retirement | 2 | |
| Ret | 5 | Alexis Masbou | Loncin | 5 | Retirement | 30 | |
| Ret | 69 | Lukáš Šembera | Aprilia | 4 | Retirement | 29 | |
| Ret | 7 | Efrén Vázquez | Derbi | 1 | Retirement | 20 |
Read more about this topic: 2009 Catalan Motorcycle Grand Prix