| Year | Category | | Winner | Constructor |
| 1969 |
50cc |
 |
Paul Lodewijkx |
Jamathi |
|
125cc |
 |
Dave Simmonds |
Kawasaki |
|
250cc |
|
Phil Read |
Yamaha |
|
350cc |
|
Phil Read |
Yamaha |
|
500cc |
 |
Alberto Pagani |
Linto |
| 1972 |
50cc |
|
Jan De Vries |
Kreidler |
|
125cc |
 |
Angel Nieto |
Derbi |
|
250cc |
|
Renzo Pasolini |
Aermacchi |
|
350cc |
|
Giacomo Agostini |
MV Agusta |
|
500cc |
|
Giacomo Agostini |
MV Agusta |
| 1974 |
50cc |
|
Henk Van Kessel |
Kreidler |
|
125cc |
|
Angel Nieto |
Derbi |
|
250cc |
|
Walter Villa |
Harley Davidson |
|
350cc |
|
Giacomo Agostini |
Yamaha |
|
500cc |
|
Gianfranco Bonera |
MV Agusta |
| 1975 |
50cc |
|
Angel Nieto |
Kreidler |
|
125cc |
|
Paolo Pileri |
Morbidelli |
|
250cc |
|
Walter Villa |
Harley Davidson |
|
350cc |
 |
Johnny Cecotto |
Yamaha |
|
500cc |
|
Giacomo Agostini |
Yamaha |
| 1977 |
50cc |
|
Eugenio Lazzarini |
Kreidler |
|
125cc |
|
Pierpaolo Bianchi |
Morbidelli |
|
250cc |
|
Franco Uncini |
Harley Davidson |
|
350cc |
 |
Alan North |
Yamaha |
|
500cc |
|
Barry Sheene |
Suzuki |
| 1979 |
50cc |
|
Eugenio Lazzarini |
Kreidler |
|
125cc |
|
Angel Nieto |
Minarelli |
|
250cc |
|
Kork Ballington |
Kawasaki |
|
350cc |
 |
Greg Hansford |
Kawasaki |
|
500cc |
 |
Kenny Roberts |
Yamaha |
| 1981 |
50cc |
|
Ricardo Tormo |
Motul Bultaco |
|
125cc |
|
Loris Reggiani |
Minarelli |
|
250cc |
 |
Anton Mang |
Kawasaki |
|
500cc |
|
Marco Lucchinelli |
Suzuki |
| 1983 |
50cc |
|
Ricardo Tormo |
Garelli |
|
125cc |
|
Maurizio Vitali |
MBA |
|
500cc |
|
Kenny Roberts |
Yamaha |
| 1988 |
80cc |
|
Jorge Martinez |
Derbi |
|
125cc |
|
Jorge Martinez |
Derbi |
|
250cc |
 |
Dominique Sarron |
Honda |
|
500cc |
|
Eddie Lawson |
Yamaha |
| 1996 |
125cc |
 |
Masaki Tokudome |
Aprilia |
|
250cc |
|
Ralf Waldmann |
Honda |
|
500cc |
|
Mick Doohan |
Honda |
| 1997 |
125cc |
|
Valentino Rossi |
Aprilia |
|
250cc |
|
Max Biaggi |
Honda |
|
500cc |
|
Mick Doohan |
Honda |
| 1998 |
125cc |
|
Tomomi Manako |
Honda |
|
250cc |
|
Valentino Rossi |
Aprilia |
|
500cc |
|
Mick Doohan |
Honda |
| 1999 |
125cc |
|
Marco Melandri |
Honda |
|
250cc |
|
Loris Capirossi |
Honda |
|
500cc |
|
Alex Criville |
Honda |
|
Racetrack 
