JAPANESE GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Kevin Schwantz | 48:48.370 | |
| 2 | Wayne Rainey | 48:48.800 | |
| 3 | Eddie Lawson | 49:19.050 | |
| 4 | Wayne Gardner | 49:23.560 | |
| 5 | Kevin Magee | 49:24.790 | |
| 6 | Niall Mackenzie | 49:27.910 | |
| 7 | Christian Sarron | 49:36.850 | |
| 8 | Tadahiko Taira | 49:36.910 | |
| 9 | Norihiko Fujiwara | 49:57.650 | |
| 10 | Shinichi Ito | 49:57.650 | |
| 11 | Bubba Shobert | 50:07.360 | |
| 12 | Ron Haslam | 50:12.250 | |
| 13 | Shunji Yatsushiro | 50:14.050 | |
| 14 | Freddie Spencer | 50:14.380 | |
| 15 | Kunio Machii | 50:17.850 | |
| 16 | Randy Mamola | ||
| 17 | Shinji Katayama | ||
| 18 | Dominique Sarron | ||
| 20 | Marco Gentile | ||
| 23 | Fernando Gonzalez | ||
| — | Hikaru Miyagi | OUTSTND | |
| — | Pierfrancesco Chili | OUTSTND | |
| — | Alessandro Valesi | OUTSTND | |
| — | Osamu Hiwatashi | OUTSTND | |
| — | Mick Doohan | OUTSTND |
125cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Ezio Gianola | 39:20.640 | |
| 2 | Hisashi Unemoto | 39:41.770 | |
| 3 | Koji Takada | 39:41.910 | |
| 4 | Masayuki Hirose | 39:42.470 | |
| 5 | Kenichi Yoshida | 39:49.600 | |
| 6 | Masato Shima | 39:57.100 | |
| 7 | Yutaka Fujiwara | 40:10.230 | |
| 8 | Kazuaki Yamashita | 40:10.470 | |
| 9 | Shinichi Fujiyama | 40:15.090 | |
| 10 | Kazuja Yamada | 40:18.750 | |
| 11 | Fausto Gresini | 40:28.310 | |
| 12 | Robin Milton | 40:30.210 | |
| 13 | Allan Scott | 40:45.820 | |
| 14 | Luis Miguel Reyes | 40:45.910 | |
| 15 | Adi Stadler | 40:46.180 |