400 m, Women
| Competition | 1977 South American Athletics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Eucaris Caicedo |  COL |
55.30 | ||
| 🥈 | Adriana Marchena |  VEN |
56.48 | ||
| 🥉 | Marcela López |  ARG |
56.69 |