JAPANESE GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Kevin Schwantz | — | 20 |
| 2 | Wayne Gardner | — | 17 |
| 3 | Eddie Lawson | — | 15 |
| 4 | Niall Mackenzie | — | 13 |
| 5 | Tadahiko Taira | — | 11 |
| 6 | Wayne Rainey | — | 10 |
| 7 | Kevin Magee | — | 9 |
| 8 | Christian Sarron | — | 8 |
| 9 | Didier De Radigues | — | 7 |
| 10 | Shunji Yatsushiro | — | 6 |
| 11 | Hikaru Miyagi | — | 5 |
| 12 | Ron Haslam | — | 4 |
| 13 | Patrick Igoa | — | 3 |
| 14 | Pierfrancesco Chili | — | 2 |
| 15 | Osamu Hiwatashi | — | 1 |
| 16 | Shinji Katayama | — | |
| 17 | Masaru Mizutani | — | |
| 18 | Keiji Kinoshita | — | |
| 19 | Alessandro Valesi | — | |
| — | Raymond Roche | OUTSTND | |
| — | Rob Mcelnea | OUTSTND | |
| — | Katunori Shinozaki | OUTSTND | |
| — | Norihiko Fujiwara | OUTSTND | |
| — | Randy Mamola | OUTSTND | |
| — | Hisashi Yamana | OUTSTND | |
| — | Marco Gentile | OUTSTND | |
| — | Manfred Fischer | OUTSTND | |
| — | Fabio Barchitta | NOTSTARTED |
250cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Anton Mang | 47:14.260 | |
| 2 | Sito Pons | 47:14.880 | |
| 3 | Masaru Kobayashi | 47:15.430 | |
| 4 | Jacques Cornu | 47:19.230 | |
| 5 | John Kocinski | 47:19.830 | |
| 6 | Juan Garriga | 47:20.570 | |
| 7 | Jean Philippe Ruggia | 47:21.590 | |
| 8 | Toshihiko Honma | 47:23.820 | |
| 9 | Carlos Cardús | 47:29.690 | |
| 10 | Masumitsu Taguchi | 47:33.430 | |
| 11 | Seigo Kikuchi | 47:33.620 | |
| 12 | Kyoji Nanba | 47:34.430 | |
| 13 | Carlos Lavado | 47:35.250 | |
| 14 | Youichi Yamamoto | 47:43.030 | |
| 15 | Keiji Tamura | 47:45.210 | |
| 16 | Yoshiari Hori | ||
| 17 | Donnie Mcleod | ||
| 18 | Hideshi Tomita | ||
| 19 | Jean Michel Mattioli | ||
| 20 | Urs Lüzi | ||
| 21 | Jean Francois Baldé | ||
| 22 | Katsuyoshi Kozono | ||
| 24 | Kevin Mitchell | ||
| 25 | Alberto Puig | ||
| 26 | August Auinger | ||
| 27 | Rene Deláby | ||
| — | Dominique Sarron | OUTSTND | |
| — | Junya Arai | OUTSTND | |
| — | Bruno Casanova | OUTSTND | |
| — | Luca Cadalora | OUTSTND | |
| — | Ivan Palazzese | OUTSTND | |
| — | Loris Reggiani | OUTSTND | |
| — | Helmut Bradl | OUTSTND |