4 x 100 m Relay, Men
| Competition | 1945 South American Athletics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
41.9 | ||
| José de Assis | — | ||||
| Renato Bastianon | — | ||||
| Geraldo Da Luz | — | ||||
| Edgard Augusto Dos Santos | — | ||||
| 🥈 | Argentina |  ARG |
42.0 | ||
| Carlos Isaac | — | ||||
| Adelio Márquez | — | ||||
| Lucio Florio | — | ||||
| Héctor Ravano | — | ||||
| 🥉 | Uruguay | URU |
43.3 | ||
| Walter Pérez | — | ||||
| Domingo Borallo | — | ||||
| José Cunéo | — | ||||
| Julio Jaime | — |