400 m, Men
| Competition | 1963 Pan American Games |
|---|---|
| Venue |
São Paulo
 BRA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Jim Johnson |  USA |
46.80 | ||
| 🥈 | Mel Spence |  JAM |
46.94 | ||
| 🥉 | Cliff Bertrand |  TTO |
47.43 |
| Competition | 1963 Pan American Games |
|---|---|
| Venue |
São Paulo
BRA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Jim Johnson | USA |
46.80 | ||
| 🥈 | Mel Spence | JAM |
46.94 | ||
| 🥉 | Cliff Bertrand | TTO |
47.43 |