| Year | Winning Rider | Manufacturer |
|---|---|---|
| 1969 | Alberto Pagani |
Linto
|
| 1972 | Giacomo Agostini (1/3) |
MV Agusta
|
| 1974 | Giacomo Agostini (2/3) |
Yamaha
|
| 1975 | Giacomo Agostini (3/3) |
Yamaha
|
| 1977 | Barry Sheene |
Suzuki
|
| 1979 | Kenny Roberts (1/2) |
Yamaha
|
| 1981 | Marco Lucchinelli |
Suzuki
|
| 1983 | Kenny Roberts (2/2) |
Yamaha
|
| 1988 | Eddie Lawson |
Yamaha
|
| 1996 | Mick Doohan (1/3) |
Honda
|
| 1997 | Mick Doohan (2/3) |
Honda
|
| 1998 | Mick Doohan (3/3) |
Honda
|
| 1999 | Àlex Crivillé |
Honda
|