400 m, Men
| Competition | 1983 South American Athletics Championships |
|---|---|
| Venue |
Santa Fé
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Sérgio de Menezes |  BRA |
46.8 | ||
| 🥈 | Evaldo da Silva | BRA |
47.4 | ||
| 🥉 | Wolfman Mena |  COL |
47.5 |