400m Men National ; Official result since 16:31
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 278 | LOBLES Djoao | NED | Sen | 47.08 | |||
| 2 | 5 | 276 | HEYLEN MAARTEN | BEL | Sen | 48.47 | |||
| 3 | 8 | 275 | DEVRIENDT ADRIEN | BEL | Sen | 48.69 | |||
| 4 | 6 | 273 | BRUYNS TIJS | BEL | Jun | 48.79 | |||
| 5 | 3 | 279 | MALUMGRE TIBO | BEL | Jun | 49.57 | |||
| 6 | 7 | 274 | DE RAEDT BRAM | BEL | Sch | 49.69 | |||
| 7 | 2 | 277 | HEYLEN ROBBERT | BEL | Sen | 50.58 |