| 1 | 6 | Alberto ASCARI | Scuderia Lancia | Lancia D50 | Lancia V8 | 90 | |
| 2 | 32 | Roberto MIERES | Officine Alfieri Maserati | Maserati 250F | Maserati L6 | 90 | |
| 3 | 30 | Luigi VILLORESI | Scuderia Lancia | Lancia D50 | Lancia V8 | 90 | |
| 4 | 22 | Eugenio CASTELLOTTI | Scuderia Lancia | Lancia D50 | Lancia V8 | 90 | |
| 5 | 20 | Harry SCHELL | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 87 | |
| 6 | 36 | Louis ROSIER | Ecurie Rosier | Maserati 250F | Maserati L6 | 79 | |
| 7 | 26 | Berardo TARASCHI | Privé | Ferrari 166 | Ferrari V12 | 79 | |
| 8 | 18 | Maurice TRINTIGNANT | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 75 | Suspension |
| 9 | 14 | Prince BIRA | Prince Bira | Maserati 250F | Maserati L6 | 66 | |
| ab | 12 | Lorenzo GIRARD | Privé | Ferrari 500 | Ferrari L4 | 44 | Mechanical |
| ab | 10 | Alfonso de PORTAGO | Privé | Ferrari 625 | Ferrari L4 | 34 | Mechanical |
| ab | 2 | Giuseppe FARINA | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 22 | Gearbox |
| ab | 34 | Luigi MUSSO | Officine Alfieri Maserati | Maserati 250F | Maserati L6 | 21 | Oil leak |
| ab | 8 | Jean BEHRA | Officine Alfieri Maserati | Maserati 250F | Maserati L6 | 12 | Suspension |
| ab | 24 | Cesare PERDISA | Officine Alfieri Maserati | Maserati 250F | Maserati L6 | 12 | Suspension |
| | | | | | | | |
| np | 4 | Sergio MANTOVANI | Officine Alfieri Maserati | Maserati 250F | Maserati L6 | | Accident |
| f | 16 | Ottorino VOLONTERIO | Privé | Maserati A6GCM | Maserati L6 | | Withdrew |
| f | 28 | Mario ALBORGHETTI | Scuderia Volpini | Maserati 4CLT/48 | Maserati L4 | | Car unavailable |