The race was run clock-wise over 25 laps on the 2.625 km (1.631 mi) short circuit and was won by Yves Giraud-Cabantous in a Delahaye 135.

The third San Remo Grand prix was held on June 27, on the reconfigured 3.380 km (2.100 mi) circuit for Voiturette class cars running to the new Formula One regulations.

[3] The competition was run counter clock-wise over 90 laps and was won from pole position by Alberto Ascari driving a Maserati 4CLT/48.

The race was won again by Juan Manuel Fangio, this time in an Alfa Romeo 158 s/c, marking the end of the Maserati dominance.

The non-championship event was won from pole position by Alberto Ascari in a Ferrari 375, setting the final lap record of 1'53.8, averaging 105.53 km/h.