400 m, Women
| Competition | 2005 South American Athletics U20 Championships |
|---|---|
| Venue |
Rosario
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | María Alejandra Idrobo |  COL |
54.20 | ||
| 🥈 | Gisele de Cruz |  BRA |
54.98 | ||
| 🥉 | Fernanda Mackenna |  CHI |
55.23 |