400m Mannen, Heat:1 of 2 ; Official result since 18:53
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 3 | 36 | Bas Uitbeijerse | Haag Atletiek | M | 49.85 | |||
| 2 | 2 | 17 | Stef van der Schaaf | VAV | M | 50.01 | |||
| 3 | 4 | 50 | Hans Velthuis | Eindhoven Atletiek | M | 50.49 | |||
| 4 | 5 | 86 | Arend-Jan Spierenburg | Cialfo | M | 51.43 | |||
| 5 | 1 | 148 | Job Dusch | Scopias Atletiek | M | 53.71 |