| Argentina | 13 Jan | Juan Manuel FangioFAN | Maserati | 100 | 3:00:55.900 |
| Monaco | 19 May | Juan Manuel FangioFAN | Maserati | 105 | 3:10:12.800 |
| Indianapolis | 30 May | Sam HanksHAN | Epperly Offenhauser | 200 | 3:41:14.250 |
| France | 07 Jul | Juan Manuel FangioFAN | Maserati | 77 | 3:07:46.400 |
| Great Britain | 20 Jul | Tony BrooksBRO | Vanwall | | |
| Great Britain | 20 Jul | Stirling MossMOS | Vanwall | 90 | 3:06:37.800 |
| Germany | 04 Aug | Juan Manuel FangioFAN | Maserati | 22 | 3:30:38.300 |
| Pescara | 18 Aug | Stirling MossMOS | Vanwall | 18 | 2:59:22.700 |
| Italy | 08 Sep | Stirling MossMOS | Vanwall | 87 | 2:35:03.900 |