| Year | Winning Rider | Manufacturer |
|---|---|---|
| 1949 | Nello Pagani |
Gilera
|
| 1950 | Geoff Duke (1/4) |
Norton
|
| 1951 | Alfredo Milani |
Gilera
|
| 1952 | Leslie Graham |
MV Agusta
|
| 1953 | Geoff Duke (2/4) |
Gilera
|
| 1954 | Geoff Duke (3/4) |
Gilera
|
| 1955 | Umberto Masetti |
MV Agusta
|
| 1956 | Geoff Duke (4/4) |
Gilera
|
| 1957 | Libero Liberati |
Gilera
|
| 1958 | John Surtees (1/3) |
MV Agusta
|
| 1959 | John Surtees (2/3) |
MV Agusta
|
| 1960 | John Surtees (3/3) |
MV Agusta
|
| 1961 | Mike Hailwood (1/5) |
Norton / MV Agusta
|
| 1962 | Mike Hailwood (2/5) |
MV Agusta
|
| 1963 | Mike Hailwood (3/5) |
MV Agusta
|
| 1964 | Mike Hailwood (4/5) |
MV Agusta
|
| 1965 | Mike Hailwood (5/5) |
MV Agusta
|
| 1966 | Giacomo Agostini (1/4) |
MV Agusta
|
| 1967 | Giacomo Agostini (2/4) |
MV Agusta
|
| 1968 | Giacomo Agostini (3/4) |
MV Agusta
|
| 1970 | Giacomo Agostini (4/4) |
MV Agusta
|
| 1971 | Alberto Pagani |
Linto / MV Agusta
|
| 1981 | Kenny Roberts |
Yamaha
|
| 1983 | Freddie Spencer |
Honda
|
| 1986 | Eddie Lawson |
Yamaha
|
| 1987 | Wayne Gardner |
Honda
|