4 x 400 m Relay, Women
| Competition | 1990 South American Games |
|---|---|
| Venue |
Lima
 PER
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Uruguay |  URU |
3:44.70 | ||
| Inés Justet | — | ||||
| Marcela Tiscornia | — | ||||
| Laura Abel | — | ||||
| Claudia Acerenza | — | ||||
| 🥈 | Chile |  CHI |
3:47.60 | ||
| Gina Pareglio | — | ||||
| Sara Montecinos | — | ||||
| Hannelore Grosser | — | ||||
| Ismenia Guzmán | — | ||||
| 🥉 | Ecuador |  ECU |
3:54.62 | ||
| Mercy Colorado | — | ||||
| Liliana Chalá | — | ||||
| Adriana Martínez | — | ||||
| Mayra Carchi | — |