400 m, Men
| Competition | 1981 South American Athletics U20 Championships |
|---|---|
| Venue |
Rio de Janeiro
 BRA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Pablo Squella |  CHI |
47.9 | ||
| 🥈 | Oswaldo Zea |  VEN |
48.1 | ||
| 🥉 | Luis Romero | VEN |
48.9 |