400 m, Men
| Competition | 1989 Pan American Athletics U20 Championships |
|---|---|
| Venue |
Santa Fé
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Chris Nelloms |  USA |
46.19 | ||
| 🥈 | Inaldo de Sena |  BRA |
47.14 | ||
| 🥉 | Enrique Díaz |  CUB |
47.40 |