JAPANESE GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Randy Mamola | 57:22.880 | |
| 2 | Wayne Gardner | 58:05.270 | |
| 3 | Takumi Ito | 58:14.180 | |
| 4 | Pierfrancesco Chili | 58:43.240 | |
| 5 | Ron Haslam | 58:45.830 | |
| 6 | Tadahiko Taira | 59:01.560 | |
| 7 | Hiroyuki Kawasaki | 59:02.950 | |
| 8 | Roger Burnett | 59:31.140 | |
| 9 | Shinji Katayama | 59:39.220 | |
| 10 | Raymond Roche | 59:51.060 | |
| 13 | Simon Buckmaster | ||
| 14 | Wolfgang Von Muralt | ||
| 15 | Esko Kuparinen | ||
| — | Mike Baldwin | OUTSTND | |
| — | Marco Gentile | OUTSTND | |
| — | Eddie Lawson | OUTSTND | |
| — | Christian Sarron | OUTSTND | |
| — | Didier De Radigues | OUTSTND | |
| — | Kenny Irons | OUTSTND | |
| — | Kevin Magee | OUTSTND | |
| — | Niall Mackenzie | OUTSTND | |
| — | Gustav Reiner | OUTSTND | |
| — | Rob Mcelnea | OUTSTND | |
| — | Norihiko Fujiwara | OUTSTND | |
| — | Alessandro Valesi | OUTSTND | |
| — | Shunji Yatsushiro | OUTSTND |
250cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Masaru Kobayashi | — | |
| 2 | Sito Pons | — | |
| 3 | Reinhold Roth | — | |
| 4 | Masao Shimizu | — | |
| 5 | Martin Wimmer | — | |
| 6 | Juan Garriga | — | |
| 7 | Patrick Igoa | — | |
| 8 | Anton Mang | — | |
| 9 | Masumitsu Taguchi | — | |
| 10 | Takehiro Yamamoto | — | |
| 13 | Luca Cadalora | — | |
| 14 | Harald Eckl | — | |
| 15 | Jean Francois Baldé | — | |
| 16 | Guy Bertin | — | |
| 18 | Jean Michel Mattioli | — | |
| 19 | Maurizio Vitali | — | |
| 20 | Bruno Bonhuil | — | |
| — | Dominique Sarron | OUTSTND | |
| — | Carlos Cardús | OUTSTND | |
| — | Jacques Cornu | OUTSTND | |
| — | Manfred Herweh | OUTSTND | |
| — | Jean Philippe Ruggia | OUTSTND | |
| — | Donnie Mcleod | OUTSTND | |
| — | Stephane Mertens | OUTSTND | |
| — | Fausto Ricci | OUTSTND |