| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Alberto Ascari | 2 | Scuderia Ambrosiana | Maserati 4CLT-48 1593/Maserati | 35 | running | ||
| 2 | 2 | Luigi Villoresi | 32 | Scuderia Ambrosiana | Maserati 4CLT-48 1594/Maserati | 35 | running | ||
| 3 | 12 | Oscar Alfredo Gálvez | 6 | Alfa Romeo 308 50017 | 35 | running | |||
| 4 | 3 | Juan Manuel Fangio | 24 | Automóvil Club Argentino | Maserati 4CLT-48 1599/Maserati | 34 | running | ||
| 5 | 5 | Birabongse Bhanudej Bhanubandh | 8 | Chula Chakrabongse | Maserati 4CLT-48 1598/Maserati | 31 | running | ||
| 6 | 11 | Vittorio Rosa | Maserati | 29 | running | ||||
| 7 | 4 | Adriano Malusardi | 4 | Automóvil Club Argentino | Maserati 4CLT-48 1600/Maserati | 25 | did not finish | ||
| 8 | 13 | Giuseppe Farina | 34 | Scuderia Ferrari | Ferrari 125C 04C | 20 | supercharger | ||
| 9 | 6 | Benedicto Campos | 20 | Automóvil Club Argentino | Maserati 4CLT-48 1580/Maserati | 6 | accident | ||
| 10 | 8 | Reg Parnell | 28 | Scuderia Ambrosiana | Maserati 4CLT-48 1596/Maserati | 4 | engine | ||
| 11 | 10 | Ernesto Tornqvist | Maserati | 4 | engine | ||||
| 12 | 7 | Eitel Cantoni | Maserati 4CL | 0 | did not start | 0 | |||
| 13 | 9 | Pascal Puopolo | Maserati 8CL 3034 | 0 | did not start | 0 | |||
| 14 | 14 | Andres Fernández | Maserati 4CL | 0 | did not start | 0 | |||
| Amédée Gordini | Amédée Gordini | Simca-Gordini T15 007GC | 0 | 0 | withdrew | 0 | |||
| Jean-Pierre Wimille | Amédée Gordini | Simca-Gordini T15 010GC | 0 | 0 | deceased | 0 |