400m Jongens B series, Heat:3 of 4 ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 6 | 55 | BLUEKENS Tim | 50.60 | Climax | JB | 53.01 | Q | |
| 2 | 4 | 412 | POSTMA Justin | 53.95 | Impala | JB | 54.11 | Q | |
| 3 | 5 | 135 | DUMAS Thijs | 53.27 | Spado | JB | 54.36 | q | |
| 4 | 2 | 288 | KRANSE Olaf | 56.00 | PAC | JB | 56.28 | ||
| 3 | 475 | SMIDT Nick | 55.11 | AAC '61 | JB | DIS | Rule163.3b |