1955 | FIM MotoGP World Championship | MV Agusta | 22 | 2 | 0 | 0 | 0 |
1954 | FIM MotoGP World Championship | MV Agusta | 13 | 3 | 0 | 0 | 1 |
1953 | FIM MotoGP World Championship | Gilera | 16 | 3 | 0 | 0 | 0 |
1952 | FIM MotoGP World Championship | Gilera | 8 | 5 | 0 | 0 | 1 |
1951 | FIM MotoGP World Championship | Gilera | 5 | 7 | 0 | 0 | 2 |
1950 | FIM MotoGP World Championship | Gilera | 4 | 5 | 0 | 0 | 2 |
1950 | FIA Formula One World Championship | Scuderia Achille Varzi | 1 | 0 | 0 | 0 | |
1949 | FIM MotoGP World Championship | Gilera | 2 | 5 | 2 | 0 | 3 |