400 m, Men
| Competition | 2005 South American Athletics U20 Championships |
|---|---|
| Venue |
Rosario
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Rodrigo Bargas |  BRA |
47.04 | ||
| 🥈 | Andrés Silva |  URU |
47.84 | ||
| 🥉 | Amílcar Torres |  COL |
47.90 |