F1 fastest laps
Fastest laps
| # | Grand Prix | Circuit | Driver | Constructor |
|---|---|---|---|---|
| 1 | Britain | Silverstone | (ITA) Giuseppe Farina | Alfa Romeo |
| 2 | Monaco | Monte Carlo | (ARG) Juan Manuel Fangio | Alfa Romeo |
| 3 | Indianapolis 500 | Indianapolis | (USA) Johnnie Parsons | Kurtis Kraft-Offenhauser |
| 4 | Switzerland | Bremgarten | (ITA) Giuseppe Farina | Alfa Romeo |
| 5 | Belgium | Spa-Francorchamps | (ITA) Giuseppe Farina | Alfa Romeo |
| 6 | France | Reims | (ARG) Juan Manuel Fangio | Alfa Romeo |
| 7 | Italy | Monza | (ARG) Juan Manuel Fangio | Alfa Romeo |
- First fastest lap (drivers)
- Juan Manuel Fangio
- Giuseppe Farina
- Johnnie Parsons
- Last fastest lap (drivers)
- Johnnie Parsons
- First fastest lap (constructors)
- Alfa Romeo
- Kurtis Kraft
- Last fastest lap (constructors)
- No constructor set their last fastest lap in 1950