400 m, Women
| Competition | 1979 South American Athletics Championships |
|---|---|
| Venue |
Bucaramanga
 COL
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Tânia Miranda |  BRA |
54.2 | ||
| 🥈 | Margarita Grun |  URU |
54.8 | ||
| 🥉 | Miriam Rojas | COL |
54.8 |