500 Cc Classification
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|
| 1 | Kevin Schwantz | Suzuki | 22 | 48:35.747 | 1 | 20 |
| 2 | Michael Doohan | Honda | 22 | +0.204 | 2 | 17 |
| 3 | Wayne Rainey | Yamaha | 22 | +0.353 | 5 | 15 |
| 4 | John Kocinski | Yamaha | 22 | +0.556 | 3 | 13 |
| 5 | Wayne Gardner | Honda | 22 | +35.311 | 11 | 11 |
| 6 | Eddie Lawson | Cagiva | 22 | +44.915 | 6 | 10 |
| 7 | Juan Garriga | Yamaha | 22 | +55.830 | 4 | 9 |
| 8 | Sito Pons | Honda | 22 | +1:08.316 | 13 | 8 |
| 9 | Kenichiro Iwahashi | Honda | 22 | +1:08.373 | 10 | 7 |
| 10 | Alex Barros | Cagiva | 22 | +1:15.302 | 8 | 6 |
| 11 | Doug Chandler | Yamaha | 22 | +1:15.595 | 5 | |
| 12 | Adrien Morillas | Yamaha | 22 | +1:18.928 | 4 | |
| 13 | Kevin Magee | Suzuki | 22 | +1:20.899 | 3 | |
| 14 | Didier de Radiguès | Suzuki | 22 | +1:22.472 | 2 | |
| 15 | Peter Goddard | Yamaha | 22 | +1:22.696 | 12 | 1 |
| 16 | Shinichi Itoh | Honda | 22 | +1:38.831 | 9 | |
| 17 | Toshihiko Honma | Yamaha | 22 | +1:41.697 | ||
| 18 | Kunio Machii | Yamaha | 22 | +1:41.905 | ||
| 19 | Satoshi Tsujimoto | Suzuki | 22 | +1:54.952 | ||
| 20 | Hikaru Miyagi | Honda | 22 | +1:55.213 | ||
| 21 | Tasuro Arata | Yamaha | 21 | +1 lap | ||
| 22 | Cees Doorakkers | Honda | 21 | +1 lap | ||
| Ret | Eddie Laycock | Yamaha | 17 | Retired | ||
| Ret | Jean-Philippe Ruggia | Yamaha | 9 | Retired | 7 | |
| Ret | Keiji Ohishi | Yamaha | 9 | Retired | ||
| Ret | Norihiko Fujiwara | Yamaha | 7 | Retired | 15 | |
| Ret | Osamu Hiwatashi | Suzuki | 1 | Retired | ||
| Ret | Tadahiko Taira | Yamaha | 1 | Retired | 14 | |
Read more about this topic: 1991 Japanese Motorcycle Grand Prix