4 x 400 m Relay, Men
| Competition | 1986 South American Athletics U18 Championships |
|---|---|
| Venue |
Comodore Rivadavia
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 4 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Argentina | ARG |
3:29.59 | ||
| Esteban Gambaro | — | ||||
| Marcos Cooper | — | ||||
| Fabián Gandolfi | — | ||||
| Gustavo Fontenla | — | ||||
| 🥈 | Brazil |  BRA |
3:31.54 | ||
| 🥉 | Uruguay |  URU |
3:34.86 |