| Argentina | 17 Jan | Juan Manuel FangioFAN | Maserati | 87 | 3:00:55.800 |
| Indianapolis | 31 May | Bill Vukovich VUK | Kurtis Kraft Offenhauser | 200 | 3:49:17.270 |
| Belgium | 20 Jun | Juan Manuel FangioFAN | Maserati | 36 | 2:44:42.400 |
| France | 04 Jul | Juan Manuel FangioFAN | Mercedes-Benz | 61 | 2:42:47.900 |
| Great Britain | 17 Jul | Jose Froilan GonzalezGON | Ferrari | 90 | 2:56:14.000 |
| Germany | 01 Aug | Juan Manuel FangioFAN | Mercedes-Benz | 22 | 3:45:45.800 |
| Switzerland | 22 Aug | Juan Manuel FangioFAN | Mercedes-Benz | 66 | 3:00:34.500 |
| Italy | 05 Sep | Juan Manuel FangioFAN | Mercedes-Benz | 80 | 2:47:47.900 |
| Spain | 24 Oct | Mike HawthornHAW | Ferrari | 80 | 3:13:52.100 |