500 Cc Classification
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|
| 1 | Mick Doohan | Honda | 29 | 52:42.650 | 3 | 20 |
| 2 | John Kocinski | Yamaha | 29 | +9.920 | 2 | 17 |
| 3 | Wayne Rainey | Yamaha | 29 | +13.463 | 1 | 15 |
| 4 | Juan Garriga | Yamaha | 29 | +34.955 | 6 | 13 |
| 5 | Jean-Philippe Ruggia | Yamaha | 29 | +39.276 | 9 | 11 |
| 6 | Eddie Lawson | Cagiva | 29 | +46.684 | 5 | 10 |
| 7 | Wayne Gardner | Honda | 29 | +53.944 | 7 | 9 |
| 8 | Didier de Radiguès | Suzuki | 29 | +55.155 | 10 | 8 |
| 9 | Adrien Morillas | Yamaha | 29 | +1:11.117 | 11 | 7 |
| 10 | Doug Chandler | Yamaha | 29 | +1:31.628 | 8 | 6 |
| 11 | Eddie Laycock | Yamaha | 28 | +1 lap | 12 | 5 |
| 12 | Marco Papa | Honda | 28 | +1 lap | 13 | 4 |
| 13 | Cees Doorakkers | Honda | 28 | +1 lap | 14 | 3 |
| 14 | Hans Becker | Yamaha | 27 | +2 laps | 15 | 2 |
| 15 | Michael Rudroff | Honda | 27 | +2 laps | 1 | |
| Ret | Kevin Schwantz | Suzuki | 11 | Retired | 4 | |
| Ret | Niggi Schmassman | Honda | 6 | Retired | ||
| DNQ | Helmut Schutz | Honda | ||||
| DNQ | Martin Trosch | Honda | ||||
| DNQ | Andreas Leuthe | Suzuki | ||||
Read more about this topic: 1991 Spanish Motorcycle Grand Prix