400m Men, Heat:1 of 10 ; Official result
| Rank | Lane | ID | Name | PB | Team | Result | Info |
| 1 | 4 | 771 | De Prins Thomas | VAC | 54.03 | ||
| 2 | 5 | 518 | Schreel Jeroen | OB | 54.22 | ||
| 3 | 6 | 1960 | Vandewattijne Timothy | ACG | 54.63 | ||
| 4 | 3 | 712 | Collin Mathieu | UAC | 56.47 | ||
| 5 | 7 | 4242 | Depuydt Patrick | ZA | 56.82 | ||
| 6 | 2 | 2763 | Chababe Efraim | HERV | 59.83 |