1 | 1 | British Grand Prix | 19 | Louis Chiron | Maserati 4CLT-48 | Maserati 4CL | 11 | |
2 | 2 | Monaco Grand Prix | 48 | Louis Chiron | Maserati 4CLT-48 | Maserati 4CL | 8 | 3 |
2 | 2 | Monaco Grand Prix | 44 | Franco Rol | Maserati 4CLT-48 | Maserati 4CL | 17 | |
3 | 4 | Swiss Grand Prix | 26 | Louis Chiron | Maserati 4CLT-48 | Maserati 4CL | 16 | 9 |
4 | 6 | French Grand Prix | 28 | Franco Rol | Maserati 4CLT-48 | Maserati 4CL | 7 | |
4 | 6 | French Grand Prix | 30 | Louis Chiron | Maserati 4CLT-48 | Maserati 4CL | 13 | |
5 | 7 | Italian Grand Prix | 4 | Franco Rol | Maserati 4CLT-48 | Maserati 4CL | 9 | |
5 | 7 | Italian Grand Prix | 6 | Louis Chiron | Maserati 4CLT-48 | Maserati 4CL | 19 |