EntrantsGridGrand Prix
| Nr | Driver | Team | Car | Engine | Tyre | 
|---|---|---|---|---|---|
| 1 |  Andrés Fernandez | A. Fernandez |  Maserati 6CM | Maserati 6CM L6C 1.5 | - | 
| 2 |  Enrico Platé | Scuderia Milan |  Maserati 4CL [1581] | Maserati 4CL L4C 1.5 | - | 
| 3 |  Jean-Pierre Wimille | Ecurie Naphtra Course |  Alfa Romeo Tipo 308 | Alfa Romeo L8C 3.0 | - | 
| 4 |  Arialdo Ruggeri | Scuderia Milan |  Maserati 6CM [1563] | Maserati 6CM L6C 1.5 | - | 
| 5 |  Eitel Cantoni | E. Cantoni |  Maserati 4CM [1559] | Maserati 4CM L4C 1.5 | - | 
| 7 |  Pascual Puópolo | San Isidoro |  Maserati 8CL [3034] | Maserati 8CL L8C 3.0 | - | 
| 8 |  Raph (Georges Raphaël) | Equipe SIMCA-Gordini |  Simca Gordini T15 | Gordini T15 L4 1.4 | - | 
| 9 |  Amédée Gordini | Equipe SIMCA-Gordini |  Simca Gordini T11 | Simca L4 1.2 | - | 
| 10 |  Ítalo Bizio | Automovil Club Argentino |  Maserati 4CL [1591] | Maserati 4CL L4C 1.5 | - | 
| 11 |  Juan Manuel Fangio | Automovil Club Argentino |  Maserati 4CL [1590] | Maserati 4CL L4C 1.5 | - | 
| 12 |  Chico Landi | Francisco Landi |  Alfa Romeo Tipo 308 [50016] | Alfa Romeo L8C 3.0 | - | 
| 14 |  Óscar Alfredo Gálvez | O. Gálvez |  Alfa Romeo Tipo 308 [50017] | Alfa Romeo L8C 3.8 | - | 
| 15 |  Achille Varzi | Ecurie Naphtra Course |  Alfa Romeo 12C-37 [51204] | Alfa Romeo 12C L12C 4.5 | - | 
| 16 |  Giuseppe Farina | Scuderia Milan |  Maserati 8CL [3035] | Maserati 8CL L8C 3.0 | - | 
| 17 |  Luigi Villoresi | Scuderia Ambrosiana |  Maserati 4CL [1586] | Maserati 4CL L4C 1.5 | - | 
| 18 |  Victorio Rosa | V. Rosa |  Maserati 6CM [1562] | Maserati 6CM L6C 1.5 | - | 
| 22 |  Count Gabriele Besana | Conte S. Besana |  Ferrari 166SC [002C] | Ferrari 166SC V12 2.0 | - | 
| Pos | Nr | Driver | Car | Engine | Tyre | Time | Laps | 
|---|---|---|---|---|---|---|---|
| 1 | 17 |  Luigi Villoresi |  Maserati 4CL [1586] | Maserati 4CL L4C 1.5 | - | 02:12.300 | 0 | 
| 2 | 16 |  Giuseppe Farina |  Maserati 8CL [3035] | Maserati 8CL L8C 3.0 | - | 02:13.800 | 0 | 
| 3 | 3 |  Jean-Pierre Wimille |  Alfa Romeo Tipo 308 | Alfa Romeo L8C 3.0 | - | 02:14.800 | 0 | 
| 4 | 11 |  Juan Manuel Fangio |  Maserati 4CL [1590] | Maserati 4CL L4C 1.5 | - | 02:15.300 | 0 | 
| 5 | 14 |  Óscar Alfredo Gálvez |  Alfa Romeo Tipo 308 [50017] | Alfa Romeo L8C 3.8 | - | 0 | |
| 6 | 10 |  Ítalo Bizio |  Maserati 4CL [1591] | Maserati 4CL L4C 1.5 | - | 0 | |
| 7 | 12 |  Chico Landi |  Alfa Romeo Tipo 308 [50016] | Alfa Romeo L8C 3.0 | - | 0 | |
| 8 | 15 |  Achille Varzi |  Alfa Romeo 12C-37 [51204] | Alfa Romeo 12C L12C 4.5 | - | 0 | |
| 9 | 4 |  Arialdo Ruggeri |  Maserati 6CM [1563] | Maserati 6CM L6C 1.5 | - | 0 | |
| 10 | 7 |  Pascual Puópolo |  Maserati 8CL [3034] | Maserati 8CL L8C 3.0 | - | 0 | |
| 11 | 1 |  Andrés Fernandez |  Maserati 6CM | Maserati 6CM L6C 1.5 | - | 0 | |
| 12 | 5 |  Eitel Cantoni |  Maserati 4CM [1559] | Maserati 4CM L4C 1.5 | - | 0 | |
| 13 | 18 |  Victorio Rosa |  Maserati 6CM [1562] | Maserati 6CM L6C 1.5 | - | 0 | 
| Official Name | I Gran Premio Internacional General San Martín | 
|---|---|
| Circuit | El Torreón | 
| Date | January 25 | 
| Pole | Luigi Villoresi 02:12.300 | 
| Fastest Lap | Giuseppe Farina 02:11.000 | 
| Podium | 1st Giuseppe Farina, 2nd Achille Varzi, 3rd Jean-Pierre Wimille | 
| Prev race | Gran Premio de Buenos Aires January 18 | 
| Next race | Copa de Acción San Lorenzo February 1 | 
| P | N | Driver | Team | Car | Engine | Tyre | Time | Laps | FL | Gr | Pts | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 16 |  Giuseppe Farina | Scuderia Milan |  Maserati 8CL [3035] | Maserati 8CL L8C 3.0 | - | 01:24:02.700 | 37 | 02:11.000 | 2 | 0 | 
| 2 | 15 |  Achille Varzi | Ecurie Naphtra Course |  Alfa Romeo 12C-37 [51204] | Alfa Romeo 12C L12C 4.5 | - | 01:25:15.000 | 37 | 8 | 0 | |
| 3 | 3 |  Jean-Pierre Wimille | Ecurie Naphtra Course |  Alfa Romeo Tipo 308 | Alfa Romeo L8C 3.0 | - | 01:25:51.800 | 37 | 3 | 0 | |
| 4 | 14 |  Óscar Alfredo Gálvez | O. Gálvez |  Alfa Romeo Tipo 308 [50017] | Alfa Romeo L8C 3.8 | - | +1 lap | 36 | 5 | 0 | |
| 5 | 11 |  Juan Manuel Fangio | Automovil Club Argentino |  Maserati 4CL [1590] | Maserati 4CL L4C 1.5 | - | +1 lap | 36 | 4 | 0 | |
| 6 | 10 |  Ítalo Bizio | Automovil Club Argentino |  Maserati 4CL [1591] | Maserati 4CL L4C 1.5 | - | +2 laps | 35 | 6 | 0 | |
| 7 | 12 |  Chico Landi | Francisco Landi |  Alfa Romeo Tipo 308 [50016] | Alfa Romeo L8C 3.0 | - | +2 laps | 35 | 7 | 0 | |
| 8 | 1 |  Andrés Fernandez | A. Fernandez |  Maserati 6CM | Maserati 6CM L6C 1.5 | - | +4 laps | 33 | 11 | 0 | |
| DNF | 17 |  Luigi Villoresi | Scuderia Ambrosiana |  Maserati 4CL [1586] | Maserati 4CL L4C 1.5 | - | DNF | 30 | 1 | 0 | |
| DNF | 4 |  Arialdo Ruggeri | Scuderia Milan |  Maserati 6CM [1563] | Maserati 6CM L6C 1.5 | - | DNF | 4 | 12 | 0 | |
| DNF | 7 |  Pascual Puópolo | San Isidoro |  Maserati 8CL [3034] | Maserati 8CL L8C 3.0 | - | DNF | 3 | 9 | 0 | |
| DNF | 5 |  Eitel Cantoni | E. Cantoni |  Maserati 4CM [1559] | Maserati 4CM L4C 1.5 | - | DNF | 0 | 10 | 0 | |
| DNF | 18 |  Victorio Rosa | V. Rosa |  Maserati 6CM [1562] | Maserati 6CM L6C 1.5 | - | DNF | 0 | 13 | 0 | |
| DNA | 2 |  Enrico Platé | Scuderia Milan |  Maserati 4CL [1581] | Maserati 4CL L4C 1.5 | - | DNA | 0 | 0 | ||
| DNA | 8 |  Raph (Georges Raphaël) | Equipe SIMCA-Gordini |  Simca Gordini T15 | Gordini T15 L4 1.4 | - | DNA | 0 | 0 | ||
| DNA | 22 |  Count Gabriele Besana | Conte S. Besana |  Ferrari 166SC [002C] | Ferrari 166SC V12 2.0 | - | DNA | 0 | 0 | ||
| DNA | 9 |  Amédée Gordini | Equipe SIMCA-Gordini |  Simca Gordini T11 | Simca L4 1.2 | - | DNA | 0 | 0 |