400 m, Men
| Competition | 1979 Pan American Games |
|---|---|
| Venue |
San Juan
 PUR
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Tony Darden |  USA |
45.11 | ||
| 🥈 | Alberto Juantorena |  CUB |
45.24 | ||
| 🥉 | Willie Smith | USA |
45.30 |
| Competition | 1979 Pan American Games |
|---|---|
| Venue |
San Juan
PUR
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Tony Darden | USA |
45.11 | ||
| 🥈 | Alberto Juantorena | CUB |
45.24 | ||
| 🥉 | Willie Smith | USA |
45.30 |