400 m, Men
| Competition | 1971 South American Athletics Championships |
|---|---|
| Venue |
Lima
 PER
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Fernando Acevedo | PER |
46.4 | ||
| 🥈 | João Pedro Francisco |  BRA |
47.9 | ||
| 🥉 | José Antônio Rabaça | BRA |
48.0 |