4 x 400 m Relay, Men
| Competition | 1983 South American Athletics U20 Championships |
|---|---|
| Venue |
Medellin
 COL
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:14.72 | ||
| David Do Rosário | — | ||||
| Said Barcelos | — | ||||
| Erasmo Damiao | — | ||||
| Sérgio de Menezes | — | ||||
| 🥈 | Colombia | COL |
3:16.56 | ||
| Julio Romero | — | ||||
| Leonel Pedroza | — | ||||
| Javier Ruiz | — | ||||
| Diego Tabárez | — | ||||
| 🥉 | Argentina |  ARG |
3:19.98 | ||
| Marcelo Cascabelo | — | ||||
| Fernando Parola | — | ||||
| Luis Migueles | — | ||||
| Daniel Bambicha | — |