| Circuit | Parco Palermo, Buenos Aires |
| Date | 18.12.1949 |
Race 1:
| Laps | 15 |
| Distance | Approx. 73,050 km / 45,401 miles |
| No | Driver | Ferrari | S/N | Team | Result |
| 6 | Benedicto Campos | 166 FL | 011 F | Equipe A.C. Argentina | 5. |
| 10 | Dorino Serafini | 125 F1 | Scuderia Ferrari | 9. | |
| 12 | Alberto Ascari | 166 Spyder Corsa | 01 C | Scuderia Ferrari | 2. |
| 16 | Juan-Manuel Fangio | 166 FL | 013 F |
Equipe A.C. Argentina | 4. |
| 40 | Peter Whitehead | 125 F1 | 10 C | Peter Whitehead | 19. |
| 44 | Luigi Villoresi | 166 Spyder Corsa | 02 C | Scuderia Ferrari | 1. |
Final:
| Laps | 35 |
| Distance | Approx. 170,450 km / 105,935 miles |
| No | Driver | Ferrari | S/N | Team | Result |
| 6 | Benedicto Campos | 166 FL | 011 F | Equipe A.C. Argentina | 4. |
| 10 | Dorino Serafini | 125 F1 | Scuderia Ferrari | 8. | |
| 12 | Alberto Ascari | 166 Spyder Corsa | 01 C | Scuderia Ferrari | 1. |
| 16 | Juan-Manuel Fangio | 166 FL | 013 F |
Equipe A.C. Argentina | 2. |
| 40 | Peter Whitehead | 125 F1 | 10 C | Peter Whitehead | 10. |
| 44 | Luigi Villoresi | 166 Spyder Corsa | 02 C | Scuderia Ferrari | 3. |