EntrantsGridGrand Prix
| Official Name | IIIº Coppa Principessa di Piemonte |
|---|---|
| Circuit | Posillipo |
| Date | April 25 |
| Pole | Giuseppe Farina 02:24.200 |
| Fastest Lap | Giuseppe Farina 02:24.400 |
| Podium | 1st Giuseppe Farina, 2nd Clemente Biondetti, 3rd Emilio Villoresi |
| Prev race | Gran Premio del Valentino April 18 |
| Next race | Campbell Trophy May 1 |
| P | N | Driver | Team | Car | Engine | Tyre | Time | Laps | FL | Gr | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 56 |  Giuseppe Farina |
Scuderia Ferrari | Alfa Romeo 12C-36 |
Alfa Romeo 12C V12C 4.1 | – | 02:04:28.800 | 50 | 02:24.400 | 1 | 0 |
| 2 | 66 | Clemente Biondetti |
Scuderia Ferrari | Alfa Romeo 12C-36 |
Alfa Romeo 12C V12C 4.1 | – | 02:06:11.000 | 50 | 3 | 0 | |
| 3 | 68 | Emilio Villoresi |
Scuderia Ferrari | Alfa Romeo 8C-2900A |
Alfa Romeo L8C 2.9 | – | 02:06:50.400 | 50 | 4 | 0 | |
| 4 | 64 |  Carlos Arzani |
C. Arzani | Alfa Romeo 8C-35 [50014] |
Alfa Romeo L8C 3.8 | – | +1 lap | 49 | 2 | 0 | |
| 5 | 60 | Eugenio Siena |
Scuderia Ferrari | Alfa Romeo 8C-35 |
Alfa Romeo L8C 3.8 | – | +1 lap | 49 | 5 | 0 | |
| 6 | 78 | Carlo Gazzabini Nicola Sarubbi |
C. Gazzabini | Alfa Romeo 8C-2300 Monza |
Alfa Romeo L8C 2.3 | – | +2 laps | 48 0 |
6 | 0 0 |
|
| 7 | 52 | Costantino Magistri |
C. Magistri | Alfa Romeo 8C-2300 Monza |
Alfa Romeo L8C 2.3 | – | +2 laps | 48 | 9 | 0 | |
| 8 | 80 |  László Hartmann |
L. Hartmann | Maserati 6C-34 [3029] |
Maserati 6C L6C 3.7 | – | +4 laps | 46 | 12 | 0 | |
| 9 | 62 |  Martin Walther |
M. Walther |  Bugatti Type 35B [4956] |
Bugatti L8C 2.3 | – | +4 laps | 46 | 8 | 0 | |
| 10 | 72 |  Adolfo Mandirola |
Ecurie Darbellay | Maserati V8 RI [4501] |
Maserati V8C 4.8 | – | +6 laps | 44 | 10 | 0 | |
| DNF | 54 | Ventidue (Alessandro Wild) |
Ventidue | Alfa Romeo 8C-2300 Monza [2111038] |
Alfa Romeo L8C 2.3 | – | Accident | 24 | 11 | 0 | |
| DNF | 70 | Luigi Soffietti |
L. Soffietti | Maserati 6C-34 |
Maserati 6C L6C 3.7 | – | Differential | 14 | 7 | 0 | |
| DNF | 74 | Ernõ Festetics |
Graf Festetics | Maserati 8CM [3015] |
Maserati 8CM L8C 3.0 | – | Engine | 13 | 13 | 0 | |
| DNA | 58 | Carlo Pes di Villamarina |
Scuderia Maremmana | Maserati 6C-34 |
Maserati 6C L6C 3.7 | – | DNA | 0 | 0 | ||
| DNA | 76 | Giacomo de Rham |
Scuderia Maremmana | Alfa Romeo Tipo B/P3 |
Alfa Romeo L8C 2.9 | – | DNA | 0 | 0 |