4 x 400 m Relay, Mixed
| Competition | 2021 South American Youth Games |
|---|---|
| Venue |
Rosario
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:33.45 | ||
| Vinícius de Brito | — | ||||
| Vinícius Galeno | — | ||||
| Julia Ribeiro | — | ||||
| Luise Braga | — | ||||
| 🥈 | Ecuador |  ECU |
3:40.86 | ||
| Erick Paredes | — | ||||
| Ian Pata | — | ||||
| Andrea Barzallo | — | ||||
| Xiomara Ibarra | — | ||||
| 🥉 | Uruguay |  URU |
3:42.38 | ||
| Gonzalo Gervasini | — | ||||
| Adrián Nicolari | — | ||||
| Martina Bonaudi | — | ||||
| Nazarena Filpo | — |