4 x 400 m Relay, Women
| Competition | 1978 South American Athletics U18 Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Argentina |  ARG |
3:56.3 | ||
| Adriana Pero | — | ||||
| Silvia Augsburger | — | ||||
| Marcela López | — | ||||
| Alejandra Vives | — | ||||
| 🥈 | Chile |  CHI |
3:58.1 | ||
| Carolina Ojeda | — | ||||
| Sara Cortés | — | ||||
| Alexandra Pavletich | — | ||||
| María Labarca | — | ||||
| 🥉 | Brazil |  BRA |
4:10.0 | ||
| Célia Pereira | — | ||||
| Suzete Montalvão | — | ||||
| Maria Magnólia Figueiredo | — | ||||
| Cláudia Adolfo | — |