400 m, Men
| Competition | 1976 South American Athletics U18 Championships |
|---|---|
| Venue |
Santigao
 CHI
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Antônio Ferreira |  BRA |
48.9 | ||
| 🥈 | Arturo Merino | CHI |
50.9 | ||
| 🥉 | José Peixoto | BRA |
51.6 |