4 x 100 m Relay, Women
| Competition | 2021 South American Athletics U18 Championships |
|---|---|
| Venue |
Ercarnación
 PAR
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Colombia |  COL |
46.18 | ||
| Laura Martínez | — | ||||
| Melany Bolaño | — | ||||
| María Alejandra Murillo | — | ||||
| Marleth Ospino | — | ||||
| 🥈 | Brazil |  BRA |
46.61 | ||
| Tainara Mees | — | ||||
| Suellen de Sant'Anna | — | ||||
| Nicole Braz Domene | — | ||||
| Isadora Sorriano | — | ||||
| 🥉 | Argentina |  ARG |
48.06 | ||
| Victoria Zanolli | — | ||||
| Helen Bernard | — | ||||
| Valentina Napolitano | — | ||||
| Arantza Gobbo | — |