4 x 400 m Relay, Women
| Competition | 1989 South American Athletics U20 Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:40.7 | ||
| América Inácio | — | ||||
| Claudete de Piña | — | ||||
| Jupira da Graça | — | ||||
| Luciana Mendes | — | ||||
| 🥈 | Argentina |  ARG |
3:52.1 | ||
| Graciela Pugliese | — | ||||
| Melina Symeonides | — | ||||
| Mabel Arrúa | — | ||||
| Viviana Maldonado | — | ||||
| 🥉 | Uruguay | URU |
3:52.3 | ||
| Ana Alfie | — | ||||
| Marcela Tiscornia | — | ||||
| Verónica Abel | — | ||||
| Laura Abel | — |