F1 Championship leaders
Drivers’ Championship
| # | Grand Prix | Leader | Lead |
|---|---|---|---|
| 1 | Britain | (ITA) Giuseppe Farina | 3 |
| 2 | Monaco |
| 0 |
| 3 | Indianapolis 500 |
| 0 |
| 4 | Switzerland | (ITA) Giuseppe Farina | 6 |
| 5 | Belgium | (ITA) Giuseppe Farina | 4 |
| 6 | France | (ARG) Juan Manuel Fangio | 2 |
| 7 | Italy | (ITA) Giuseppe Farina | 3 |
- First time as championship leader
- Juan Manuel Fangio (first Argentine driver to lead the championship)
- Giuseppe Farina (first Italian driver to lead the championship)
Constructors’ Championship
The Constructors’ championship did not begin until 1958.