400 m, Men
| Competition | 1945 South American Athletics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Jorge Ehlers |  CHI |
49.0 | ||
| 🥈 | Agenor Da Silva |  BRA |
49.2 | ||
| 🥉 | Rosalvo Ramos | BRA |
49.4 |