400 m, Men
| Competition | 1975 South American Athletics U18 Championships |
|---|---|
| Venue |
Quito
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Antônio Ferreira |  BRA |
50.3 | ||
| 🥈 | José de Oliveira | BRA |
50.5 | ||
| 🥉 | Julio Salguero | ECU |
50.9 |