4 x 400 m Relay, Men
| Competition | 1948 South American Athletics Championships |
|---|---|
| Venue |
La Paz
 BOL
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Chile |  CHI |
3:26.3 | ||
| Sergio Guzmán | — | ||||
| Reinaldo Müller | — | ||||
| Ramis | — | ||||
| Gaona | — | ||||
| 🥈 | Peru |  PER |
3:26.4 | ||
| Antero Mongrut | — | ||||
| Eduardo Laca | — | ||||
| Rogelio Gómez | — | ||||
| Carlos Bahamonde | — | ||||
| 🥉 | Uruguay |  URU |
3:31.2 | ||
| Hércules Azcune | — | ||||
| Carlos Ribeiro | — | ||||
| Spikerman Rodríguez | — | ||||
| Julio Saravia | — |