400 m, Men
| Competition | 2021 South American Athletics U18 Championships |
|---|---|
| Venue |
Ercarnación
 PAR
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Vinícius Galeno |  BRA |
48.73 | ||
| 🥈 | Gabriel Ristow | BRA |
48.78 | ||
| 🥉 | Héctor Broncano |  ECU |
49.49 |