400 m, Men
| Competition | 1968 South American Athletics U20 Championships |
|---|---|
| Venue |
Sao Paulo
 BRA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Carlos Bertotti |  ARG |
49.4 | ||
| 🥈 | Iván Varas |  CHI |
49.8 | ||
| 🥉 | Ricardo Rovira |  URU |
50.1 |