400m mannen-hommes, Heat:1 of 4 ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 9971 | Makwala Isaac** | BOT | SEN | 45.80 | Q | ||
| 2 | 6 | 2634 | Iguacel Christian | LYRA | Sen | 47.13 | q | ||
| 3 | 5 | 1283 | Lins Sebastien | RESC | Sen | 47.21 | q | ||
| 4 | 7 | 3043 | Van Herck Yoni | ARAC | Sen | 49.16 | |||
| 5 | 8 | 1617 | Ennamir Mohssine | CABW | Sen | 50.93 | |||
| 6 | 2 | 2020 | Vandenhoeke Arthur | RESC | Sen | 51.17 | |||
| 7 | 9 | 2735 | Schepers Arne | AVT | Sen | 51.91 | |||
| 8 | 3 | 1629 | Vreux Jonathan | MOHA | Sen | 52.38 |