400 m Freestyle, Men
| Competition | 2021 South American Aquatics Championships |
|---|---|
| Venue |
Buenos Aires
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Murilo Sartori |  BRA |
3:54.24 | ||
| 🥈 | Pablo Vieira | BRA |
3:54.46 | ||
| 🥉 | Joaquín Vargas |  PER |
3:55.54 |