4 x 400 m Relay, Men
| Competition | 1991 South American Athletics Championships |
|---|---|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:05.60 | ||
| Roberto Carlos Bortolotto | — | ||||
| Ediélson Tenório | — | ||||
| Jorge Costa | — | ||||
| Geraldo Maranhão Júnior | — | ||||
| 🥈 | Venezuela |  VEN |
3:08.39 | ||
| Emmanuel Antonio | — | ||||
| Henry Aguiar | — | ||||
| José Zambrano | — | ||||
| Luis Bello | — | ||||
| 🥉 | Argentina |  ARG |
3:11.10 | ||
| Guillermo Cacián | — | ||||
| Claudio Molocznik | — | ||||
| Claudio Arcas | — | ||||
| UNKNOWN | — |