400 m, Men
| Competition | 1985 South American Athletics U20 Championships |
|---|---|
| Venue |
Santa Fé
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Eduardo Fuentes |  CHI |
48.03 | ||
| 🥈 | Hélcio Reis |  BRA |
48.32 | ||
| 🥉 | André De Oliveira | BRA |
48.54 |