| Pos | Rider | Manufacturer | Time/Gap |
|---|---|---|---|
| 1 | Kenny Roberts P FL |
|
50 minutes 44.820 seconds |
| 2 | Barry Sheene |
|
+0.670s |
| 3 | Freddie Spencer |
|
+1.370s |
| 4 | Franco Uncini | Suzuki | +5.660s |
| 5 | Marco Lucchinelli |
|
+12.630s |
| 6 | Takazumi Katayama |
|
+45.560s |
| 7 | Marc Fontan |
|
+48.590s |
| 8 | Kork Ballington | Kawasaki | +55.800s |
| 9 | Jack Middelburg | Suzuki | +81.060s |
| 10 | Loris Reggiani | Suzuki | +125.610s |
| 11 | Boet van Dulmen | Suzuki | 1 lap |
| 12 | Bernard Fau | Suzuki | 1 lap |
| 13 | Graziano Rossi |
|
1 lap |
| 14 | Roberto Pietri | Suzuki | 1 lap |
| 15 | Philippe Coulon | Suzuki | 1 lap |
| 16 | Michel Frutschi | Sanvenero | 1 lap |
| 17 | Sergio Pellandini | Suzuki | 1 lap |
| 18 | Jon Ekerold | Suzuki | 1 lap |
| 19 | Guy Bertin | Sanvenero | 1 lap |
| 20 | Marco Greco | Suzuki | 2 laps |
| - | Gianni Pelletier | Morbidelli | Ret |
| - | Anton Mang | Kawasaki | Ret |
| - | Eduardo Alemán |
|
Ret |
| - | Randy Mamola | Suzuki | Ret |
| - | Seppo Rossi | Suzuki | Ret |
| - | Graeme Crosby |
|
Ret |
| - | Vincenzo Cascino |
|
DNS |
| - | Virginio Ferrari | Suzuki | Ret |