400 m, Men
| Competition | 2024 South American Athletics U18 Championships |
|---|---|
| Venue |
San Luis
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Luigi Valenza | ARG |
48.59 | ||
| 🥈 | Iván Maidana | ARG |
49.00 | ||
| 🥉 | Fernando Ferreira |  BRA |
49.08 |