# Grand Prix-wegrace van Japan 1991

De Grand Prix-wegrace van Japan 1991 was de eerste race van het wereldkampioenschap wegrace-seizoen 1991. De race werd verreden op 24 maart 1991 op het Suzuka International Racing Course nabij Suzuka, Japan.

## Uitslag
### 500 cc

| Pos | Nr | Rijder | Constructeur | Ronden | Tijd | Grid | Punten |
| 1 | 34 | Kevin Schwantz | Suzuki | 22 | 48:35.747 | 1 | 20 |
| 2 | 3 | Mick Doohan | Honda | 22 | +0.204 | 2 | 17 |
| 3 | 1 | Wayne Rainey | Yamaha | 22 | +0.353 | 5 | 15 |
| 4 | 19 | John Kocinski | Yamaha | 22 | +0.556 | 3 | 13 |
| 5 | 5 | Wayne Gardner | Honda | 22 | +35.311 | 11 | 11 |
| 6 | 7 | Eddie Lawson | Cagiva | 22 | +44.915 | 6 | 10 |
| 7 | 6 | Juan Garriga | Yamaha | 22 | +55.830 | 4 | 9 |
| 8 | 10 | Sito Pons | Honda | 22 | +1:08.316 | 13 | 8 |
| 9 | 41 | Kenichiro Iwahashi | Honda | 22 | +1:08.373 | 10 | 7 |
| 10 | 12 | Alex Barros | Cagiva | 22 | +1:15.302 | 8 | 6 |
| 11 | 21 | Doug Chandler | Yamaha | 22 | +1:15.595 | 17 | 5 |
| 12 | 20 | Adrien Morillas | Yamaha | 22 | +1:18.928 | 16 | 4 |
| 13 | 9 | Kevin Magee | Suzuki | 22 | +1:20.899 | 18 | 3 |
| 14 | 27 | Didier de Radiguès | Suzuki | 22 | +1:22.472 | 19 | 2 |
| 15 | 46 | Peter Goddard | Yamaha | 22 | +1:22.696 | 12 | 1 |
| 16 | 28 | Shinichi Ito | Honda | 22 | +1:38.831 | 9 | |
| 17 | 45 | Toshihiko Honma | Yamaha | 22 | +1:41.697 | 24 | |
| 18 | 37 | Kunio Machii | Yamaha | 22 | +1:41.905 | 20 | |
| 19 | 40 | Satoshi Tsujimoto | Suzuki | 22 | +1:54.952 | 22 | |
| 20 | 36 | Hikaru Miyagi | Honda | 22 | +1:55.213 | 21 | |
| 21 | 25 | Tasuro Arata | Yamaha | 21 | +1 ronde | 27 | |
| 22 | 16 | Cees Doorakkers | Honda | 21 | +1 ronde | 28 | |
| DNF | 17 | Eddie Laycock | Yamaha | 17 | Uitgevallen | 26 | |
| DNF | 8 | Jean-Philippe Ruggia | Yamaha | 9 | Uitgevallen | 7 | |
| DNF | 39 | Keiji Ohishi | Yamaha | 9 | Uitgevallen | 25 | |
| DNF | 35 | Norihiko Fujiwara | Yamaha | 7 | Uitgevallen | 15 | |
| DNF | 23 | Osamu Hiwatashi | Suzuki | 1 | Uitgevallen | 23 | |
| DNF | 44 | Tadahiko Taira | Yamaha | 1 | Uitgevallen | 14 | |
| DNQ | 13 | Nicholas Schmassman | Honda | 0 | Niet gekwalificeerd | | |

### 250 cc

| Pos | Nr | Rijder | Constructeur | Ronden | Tijd | Grid | Punten |
| 1 | 3 | Luca Cadalora | Honda | 20 | 45:23.048 | 8 | 20 |
| 2 | 2 | Carlos Cardús | Honda | 20 | +0.255 | 2 | 17 |
| 3 | 5 | Wilco Zeelenberg | Honda | 20 | +17.876 | 1 | 15 |
| 4 | 53 | Masumitsu Taguchi | Honda | 20 | +21.180 | 9 | 13 |
| 5 | 55 | Nobuatsu Aoki | Honda | 20 | +21.560 | 11 | 11 |
| 6 | 52 | Tetsuya Harada | Yamaha | 20 | +21.570 | 3 | 10 |
| 7 | 4 | Helmut Bradl | Honda | 20 | +22.060 | 6 | 9 |
| 8 | 7 | Masahiro Shimizu | Honda | 20 | +23.103 | 18 | 8 |
| 9 | 13 | Loris Reggiani | Aprilia | 20 | +31.920 | 15 | 7 |
| 10 | 54 | Tsutomu Udagawa | Honda | 20 | +37.366 | 4 | 6 |
| 11 | 57 | Katsuyoshi Kozono | Honda | 20 | +37.953 | 7 | 5 |
| 12 | 61 | Kyoji Nanba | Yamaha | 20 | +40.569 | 12 | 4 |
| 13 | 8 | Jochen Schmid | Honda | 20 | +56.684 | 17 | 3 |
| 14 | 6 | Martin Wimmer | Suzuki | 20 | +56.734 | 10 | 2 |
| 15 | 56 | Toshiyuki Arakaki | Honda | 20 | +57.140 | 16 | 1 |
| 16 | 59 | Osamu Miyazaki | Yamaha | 20 | +58.962 | 20 | |
| 17 | 9 | Pierfrancesco Chili | Aprilia | 20 | +1:00.083 | 13 | |
| 18 | 51 | Jean-Pierre Jeandat | Honda | 20 | +1:03.334 | 23 | |
| 19 | 18 | Andreas Preining | Aprilia | 20 | +1:08.539 | 19 | |
| 20 | 33 | Stefan Prein | Honda | 20 | +1:10.775 | 21 | |
| 21 | 16 | Alberto Puig | Yamaha | 20 | +1:31.053 | 26 | |
| 22 | 58 | Takehiko Kurokawa | Honda | 20 | +1:34.951 | 30 | |
| 23 | 21 | Leon van der Heijden | Honda | 20 | +1:35.323 | 27 | |
| 24 | 60 | Yoshomasa Kato | Yamaha | 20 | +1:38.026 | 25 | |
| 25 | 15 | Carlos Lavado | Yamaha | 20 | +1:41.074 | 31 | |
| 26 | 17 | Paolo Casoli | Yamaha | 20 | +1:48.765 | 29 | |
| 27 | 47 | Urs Jücker | Yamaha | 20 | +2:07.587 | 37 | |
| 28 | 14 | Peter Lindén | Honda | 20 | +2:10.769 | 32 | |
| 29 | 42 | Kevin Mitchell | Yamaha | 20 | +2:13.523 | 36 | |
| 30 | 41 | Frédéric Protat | Aprilia | 20 | +2:13.687 | 34 | |
| 31 | 23 | Jim Filice | Yamaha | 19 | +1 ronde | 24 | |
| 32 | 32 | Bernard Haenggeli | Aprilia | 19 | +1 ronde | 33 | |
| DNF | 62 | Hiroyuki Yamagishi | Honda | 18 | Uitgevallen | 28 | |
| DNF | 44 | Jaime Mariano | Aprilia | 16 | Uitgevallen | 35 | |
| DNF | 11 | Àlex Crivillé | Honda | 13 | Uitgevallen | 14 | |
| DNF | 45 | Corrado Catalano | Honda | 6 | Uitgevallen | 38 | |
| DNF | 29 | Tadayuki Okada | Honda | 5 | Uitgevallen | 5 | |
| DNF | 20 | Doriano Romboni | Honda | 1 | Uitgevallen | 22 | |
| DNQ | 48 | Ian Newton | Yamaha | 0 | Niet gekwalificeerd | | |

### 125 cc

| Pos | Nr | Rijder | Constructeur | Ronden | Tijd | Grid | Punten |
| 1 | 56 | Noboru Ueda | Honda | 16 | 38:26.905 | 1 | 20 |
| 2 | 7 | Fausto Gresini | Honda | 16 | +2.553 | 3 | 17 |
| 3 | 1 | Loris Capirossi | Honda | 16 | +8.676 | 2 | 15 |
| 4 | 55 | Masato Shima | Honda | 16 | +15.917 | 10 | 13 |
| 5 | 5 | Jorge Martínez | JJ Cobas | 16 | +33.737 | 31 | 11 |
| 6 | 10 | Heinz Lüthi | Honda | 16 | +37.389 | 11 | 10 |
| 7 | 28 | Ralf Waldmann | Honda | 16 | +37.546 | 16 | 9 |
| 8 | 53 | Akira Saito | Honda | 16 | +38.930 | 12 | 8 |
| 9 | 54 | Soichiro Sato | Honda | 16 | +39.174 | 15 | 7 |
| 10 | 11 | Adolf Stadler | JJ Cobas | 16 | +39.327 | 5 | 6 |
| 11 | 12 | Gabriele Debbia | Aprilia | 16 | +39.380 | 13 | 5 |
| 12 | 51 | Nobuyuki Wakai | Honda | 16 | +39.425 | 4 | 4 |
| 13 | 59 | Yosuke Yamakawa | Honda | 16 | +45.178 | 8 | 3 |
| 14 | 27 | Gimmi Bosio | Honda | 16 | +47.160 | 17 | 2 |
| 15 | 58 | Kinya Wada | Honda | 16 | +47.506 | 22 | 1 |
| 16 | 2 | Hans Spaan | Honda | 16 | +47.883 | 7 | |
| 17 | 60 | Masayuki Hirose | Honda | 16 | +48.032 | 24 | |
| 18 | 16 | Koji Takada | Honda | 16 | +54.478 | 26 | |
| 19 | 20 | Hisashi Unemoto | Honda | 16 | +54.555 | 20 | |
| 20 | 46 | Arie Molenaar | Honda | 16 | +1:03.982 | 32 | |
| 21 | 4 | Dirk Raudies | Honda | 16 | +1:05.364 | 40 | |
| 22 | 17 | Steve Patrickson | Honda | 16 | +1:06.647 | 23 | |
| 23 | 57 | Hideaki Ueno | Honda | 16 | +1:06.674 | 18 | |
| 24 | 14 | Julián Miralles | JJ Cobas | 16 | +1:06.892 | 30 | |
| 25 | 9 | Alessandro Gramigni | Aprilia | 16 | +1:26.032 | 28 | |
| 26 | 40 | Johnny Wickström | Honda | 16 | +1:30.576 | 33 | |
| 27 | 18 | Robin Appleyard | Honda | 16 | +1:30.874 | 27 | |
| 28 | 15 | Maurizio Vitali | Gazzaniga | 16 | +1:30.939 | 19 | |
| 29 | 45 | Thierry Feuz | Honda | 16 | +1:32.191 | 35 | |
| 30 | 47 | Oliver Petrucciani | Aprilia | 16 | +1:56.424 | 37 | |
| 31 | 29 | Peter Galvin | Honda | 16 | +1:56.544 | 34 | |
| 32 | 50 | Hubert Abold | Honda | 16 | +2:24.346 | 39 | |
| 33 | 91 | Manuel Herreros | JJ Cobas | 15 | +1 ronde | 29 | |
| DNF | 6 | Ezio Gianola | Derbi | 13 | Ongeluk | 14 | |
| DNF | 52 | Masafumi Ono | Honda | 13 | Uitgevallen | 9 | |
| DNF | 42 | Herri Torrontegui | JJ Cobas | 9 | Uitgevallen | 25 | |
| DNF | 3 | Bruno Casanova | Honda | 6 | Uitgevallen | 6 | |
| DNF | 19 | Alfred Waibel | Honda | 6 | Uitgevallen | 38 | |
| DNF | 35 | Kazuto Sakata | Honda | 5 | Uitgevallen | 21 | |
| DNF | 34 | Emilio Cuppini | Gazzaniga | 2 | Uitgevallen | 36 | |
| DNQ | 44 | Alan Patterson | Honda | 0 | Niet gekwalificeerd | | |
| DNQ | 49 | René Dünki | Honda | 0 | Niet gekwalificeerd | | |
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