400 m, Women
| Competition | 1986 South American Athletics U20 Championships |
|---|---|
| Venue |
Quito
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Marta Dos Santos |  BRA |
55.73 | ||
| 🥈 | Claudia Riquelme |  CHI |
57.33 | ||
| 🥉 | Adriana Martínez | ECU |
57.48 |