1 | 4 | French Grand Prix | 10 | Officine Alfieri Maserati | Maserati 250F | Maserati 250F | 3 | Transmission |
2 | 5 | British Grand Prix | 31 | Officine Alfieri Maserati | Maserati 250F | Maserati 250F | 30 | Engine |
3 | 5 | British Grand Prix | 32 | Officine Alfieri Maserati | Maserati 250F | Maserati 250F | ||
4 | 8 | Italian Grand Prix | 34 | Scuderia Ferrari | Ferrari 625 | Ferrari 553 | 2 | Engine |
5 | 9 | Spanish Grand Prix | 34 | Scuderia Lancia | Lancia D50 | Lancia DS50 | 1 | Clutch |