4 x 100 m Medley Relay, Men
| Competition | 1958 South American Aquatics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 8 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
4:29.1 | ||
| João Gonçalves Filho | — | ||||
| Otávio Mobiglia | — | ||||
| Antônio Montanhez | — | ||||
| Manuel dos Santos | — | ||||
| 🥈 | Argentina |  ARG |
4:39.1 | ||
| Francisco Lamas | — | ||||
| José M. Rodríguez | — | ||||
| Fernando Fanjul | — | ||||
| Domingo Arietti | — | ||||
| 🥉 | Peru |  PER |
4:44.4 |