4 x 400 m Relay, Women
| Competition | 2021 South American Athletics U23 Championships |
|---|---|
| Venue |
Guayaquil
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:38.28 | ||
| Rita Silva | — | ||||
| Tiffani Marinho | — | ||||
| Giovana Rosália Dos Santos | — | ||||
| Maria de Sena | — | ||||
| 🥈 | Chile |  CHI |
3:41.48 | ||
| Rocío Muñoz | — | ||||
| Berdine Castillo | — | ||||
| Anaïs Hernández | — | ||||
| Martina Weil | — | ||||
| 🥉 | Colombia |  COL |
3:46.19 | ||
| Valeria Cabezas | — | ||||
| Stefany López | — | ||||
| Yeimy Tatiana Echeverry | — | ||||
| Angie Palacios | — |