Men's 400m Round 1 - Heat 4
samedi 13 août 2016, 00h29 GMT – 05h29 GMT
| Nom | Temps | |
|---|---|---|
| 1 |  Lalonde Gordon | 45.24″ |
| 2 | Luka Janezic | + 0.09″ |
| 3 |  Baboloki Thebe | + 0.17″ |
| 4 |  Chris Brown | + 0.32″ |
| 5 | Martyn Rooney | + 0.36″ |
| 6 |  Julian Jrummi Walsh | + 1.13″ |
| 7 | Gustavo Cuesta | + 1.68″ |