4 x 100 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 |
41.08 | ||
| David Do Rosário | — | ||||
| Sérgio de Menezes | — | ||||
| Róbson Caetano da Silva | — | ||||
| Arnaldo da Silva | — | ||||
| 🥈 | Argentina |  ARG |
41.71 | ||
| José Beduino | — | ||||
| Daniel Bambicha | — | ||||
| Gabriel Martínez | — | ||||
| Martín Domínguez | — | ||||
| 🥉 | Colombia | COL |
42.54 | ||
| Luis Lourduy | — | ||||
| Anselmo Machado | — | ||||
| Juan González | — | ||||
| Anselmo Pérez | — |