4 x 400 m Relay, Men
| Competition | 2021 South American Athletics Championships |
|---|---|
| Venue |
Guayaquil
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:04.25 | ||
| Bruno de Barros | — | ||||
| Lucas Carvalho | — | ||||
| João Falcão Cabral | — | ||||
| Pedro Burmann | — | ||||
| 🥈 | Colombia |  COL |
3:08.15 | ||
| Kevin Mina | — | ||||
| Raúl Mena | — | ||||
| Nicolás Salinas | — | ||||
| Fanor Escobar | — | ||||
| 🥉 | Ecuador | ECU |
3:13.74 | ||
| Edison Acuña | — | ||||
| Alan Minda | — | ||||
| Miguel Maldonado | — | ||||
| Anderson Marquínez | — |