BELGIUM GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Kenny Roberts | 51:20.880 | |
| 2 | Freddie Spencer | 51:34.780 | |
| 3 | Randy Mamola | 51:56.010 | |
| 4 | Takazumi Katayama | 51:58.500 | |
| 5 | Eddie Lawson | 52:06.380 | |
| 6 | Marc Fontan | 52:28.610 | |
| 7 | Marco Lucchinelli | 52:34.310 | |
| 8 | Ron Haslam | 52:50.370 | |
| 9 | Boet Van Dulmen | 53:01.430 | |
| 10 | Sergio Pellandini | 53:07.780 | |
| 11 | Keith Huewen | ||
| 12 | Mark Salle | ||
| 13 | Eero Hyvarinen | ||
| 14 | Frank Gross | ||
| 15 | Wolfgang Von Muralt | ||
| 16 | Stuart Avant | ||
| 17 | Ernst Gschwender | ||
| 18 | Rob Punt | ||
| 20 | Borge W. Nielsen | ||
| 21 | Dennis Ireland | ||
| — | Didier De Radigues | OUTSTND | |
| — | Jack Middelburg | OUTSTND | |
| — | Franz Kaserer | OUTSTND | |
| — | Philippe Coulon | OUTSTND | |
| — | Peter Sjostrom | OUTSTND | |
| — | Chris Guy | OUTSTND |
125cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Eugenio Lazzarini | 36:59.750 | |
| 2 | Angel Nieto | 37:08.800 | |
| 3 | Ricardo Tormo | 37:09.580 | |
| 4 | Johnny Wickstroem | 37:46.080 | |
| 5 | Lucio Pietroniro | 37:46.340 | |
| 6 | Gerhard Waibel | 37:46.770 | |
| 7 | Pierluigi Aldrovandi | 37:47.070 | |
| 8 | Henk Van Kessel | 37:51.420 | |
| 9 | Fausto Gresini | 38:02.780 | |
| 10 | Stefano Caracchi | 38:05.530 | |
| 11 | Stefan Dörflinger | ||
| 12 | Willy Perez | ||
| 13 | Jean Claude Selini | ||
| 14 | Erich Klein | ||
| 15 | Alfred Waibel | ||
| 17 | Paul Bordes | ||
| 18 | Giuseppe Ascareggi | ||
| 19 | Olivier Liégeois | ||
| 20 | Jussi Hautaniemi | ||
| 24 | Bady Hassaine | ||
| 25 | Esa Kytölä | ||
| 27 | Chris Baert | ||
| — | Bruno Kneubühler | OUTSTND | |
| — | August Auinger | OUTSTND | |
| — | Pierpaolo Bianchi | OUTSTND | |
| — | Maurizio Vitali | OUTSTND | |
| — | Hans Müller | OUTSTND |