1947 Gran Premio d'Italia
7 September - Sempione Park: 100 laps x 3.447 km = 344.728 km

Fastest Lap: Carlo Felice Trossi (Alfa Romeo 158), 1m44.0, 74.16mph
Pole Position:Consalvo Sanesi (Alfa Romeo 158), 1m44.0 

Results:

1 30 Carlo Felice Trossi           Alfa Romeo 158          3h02m25.0, 70.29mph
2 16 Achille Varzi                 Alfa Romeo 158          3h02m25.1
3 24 Consalvo Sanesi               Alfa Romeo 158          99 laps
4  2 Alessandro Gaboardi           Alfa Romeo 158          95 laps
5 34 Alberto Ascari                Maserati 4CL            94 laps
6 54 Henri Louveau                 Delage D6.70            91 laps
7 22 Charles Pozzi                 Delahaye135S            89 laps
8 12 Eugene Chaboud                Delahaye 135S           87 laps
9 44 Carlo Pesci                   Maserati 6CM            84 laps

Did Not Finish:

  56 Mario Porrino                 Crisitalia D46          56
  52 Lorenzo Arrigoni              Maserati 6CM            56
  10 Lamberto Grolla               Crisitalia D46          56
  28 Giovanni Bracco               Delage 3000             53
   6 Luigi Villoresi               Maserati 4CLT           53 Brakes
  42 Gastano dell'Acqua            Maserati 6CM            23
   8 Raymond Sommer                Maserati 4CL            20 Engine
  14 'Levegh'                      Maserati 4CL             6
  36 'Raph'                        Maserati 4CL             3 Oil pipe
   4 Nino Pagani                   Maserati 4CL             2 Tyres
  26 'Bira'                        Maserati 4CL             0 supercharger