4 x 100 m Relay, Women
| Competition | 1990 South American Athletics U20 Championships |
|---|---|
| Venue |
Bogota
 COL
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
47.07 | ||
| Tânia Da Silva | — | ||||
| Norma Aparecida | — | ||||
| Antonina Santángelo | — | ||||
| Claudete de Piña | — | ||||
| 🥈 | Colombia | COL |
47.24 | ||
| Liset Valois | — | ||||
| Rosa Segovia | — | ||||
| Zandra Borrero | — | ||||
| Gladys Colorado | — | ||||
| 🥉 | Chile |  CHI |
47.27 | ||
| Andrea Hoelzel | — | ||||
| Loreto Arellano | — | ||||
| Lisette Rondón | — | ||||
| Hannelore Grosser | — |