4 x 400 m Relay, Men
| Competition | 1931 South American Athletics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 9 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥈 | Argentina |  ARG |
— | ||
| Carlos Bianchi | — | ||||
| Hermenegildo de Rosso | — | ||||
| José Signoris | — | ||||
| Leonidas Payal | — | ||||
| 🥉 | Uruguay | URU |
— | ||
| Ricardo La Rosa | — | ||||
| Arnaldo Borras | — | ||||
| Héctor Domínguez | — | ||||
| Lena | — |