400 m, Men
| Competition | 1937 South American Athletics Championships |
|---|---|
| Venue |
São Paulo
 BRA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Antônio de Carvalho | BRA |
50.0 | ||
| 🥈 | Roberto González |  ARG |
50.1 | ||
| 🥉 | Ciro De Andrade | BRA |
50.1 |