500cc Classification
| Pos | Rider | Manufacturer | Time/Retired | Points |
|---|---|---|---|---|
| 1 | John Kocinski | Yamaha | 50:05.945 | 20 |
| 2 | Wayne Gardner | Honda | +6.145 | 17 |
| 3 | Mick Doohan | Honda | +21.070 | 15 |
| 4 | Juan Garriga | Yamaha | +39.088 | 13 |
| 5 | Kevin Magee | Yamaha | +41.520 | 11 |
| 6 | Niall Mackenzie | Yamaha | +1:01.504 | 10 |
| 7 | Adrien Morillas | Yamaha | +1:25.351 | 9 |
| 8 | Didier de Radiguès | Suzuki | +1:25.912 | 8 |
| 9 | Marco Papa | Honda | +2 Laps | 7 |
| 10 | Cees Doorakkers | Honda | +2 Laps | 6 |
| 11 | Hans Becker | Yamaha | +2 Laps | 5 |
| 12 | Eddie Laycock | Yamaha | +2 Laps | 4 |
| 13 | Josef Doppler | Yamaha | +3 Laps | 3 |
| 14 | Nicholas Schmassman | Honda | +6 Laps | 2 |
| Ret | Sito Pons | Honda | Retirement | |
| Ret | Jean Philippe Ruggia | Yamaha | Retirement | |
| Ret | Doug Chandler | Yamaha | Retirement |
Read more about this topic: 1991 Malaysian Motorcycle Grand Prix