400 m, Men
| Competition | 1988 South American Athletics U18 Championships |
|---|---|
| Venue |
Cuenca
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Moisés Sandoval |  CHI |
50.9 | ||
| 🥈 | Alexandre Marato |  BRA |
51.3 | ||
| 🥉 | Eduardo Ojeda |  PER |
51.4 |