400 m, Men
| Competition | 2003 Pan American Games |
|---|---|
| Venue |
Santo Domingo
 DOM
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Mitch Potter |  USA |
45.11 | ||
| 🥈 | Yeimer López |  CUB |
45.13 | ||
| 🥉 | Alleyne Francique |  GRN |
45.51 |
| Competition | 2003 Pan American Games |
|---|---|
| Venue |
Santo Domingo
DOM
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Mitch Potter | USA |
45.11 | ||
| 🥈 | Yeimer López | CUB |
45.13 | ||
| 🥉 | Alleyne Francique | GRN |
45.51 |