400m men, Heat:1 of 8 ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 2 | 3082 | PLETINCKX QUENTIN | RCAS | Sch | 55.06 | |||
| 2 | 5 | 2018 | GHEEROLFS JOACHIM | ASVO | Sch | 59.26 | |||
| 3 | 3 | 88 | PARDAENS JOREN | ACP | Cad | 59.83 | |||
| 4 | 6 | 1049 | DE BUSSCHERE LUCAS | ACME | Cad | 59.97 | |||
| 5 | 7 | 7 | VANDEN BUSSCHE VIC | ACME | Cad | 1:01.30 | |||
| 6 | 4 | 99 | HUYSMANS KEVIN | GRIM | Jun | 1:03.75 |