400 m Freestyle, Men
| Competition | 1958 South American Aquatics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Sylvio dos Santos |  BRA |
4:45.0 | ||
| 🥈 | Jorge Mezzadra |  ARG |
— | ||
| 🥉 | Carlos Fiorito | ARG |
— |