Mens 400m B ; Official result since 19:30
Stadium Record 45.25 Arnaud Malherbe 2000
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 3 | 51 | NEWELL Craig | 47.31 | IRL/Ballymena & Antrim | SEN | 47.98 | ||
| 2 | 5 | 50 | MELLON Andrew | 46.80 | IRL/Crusaders | SEN | 48.12 | ||
| 3 | 4 | 49 | LENNON-FORD Luke | 45.23 | IRL/Clonliffe | SEN | 48.16 | ||
| 4 | 6 | 53 | KERVICK Dara | 46.53 | IRL/Clonliffe | SEN | 48.33 | ||
| 5 | 2 | 52 | WHITE Paul | 47.80 | IRL/Nenagh | SEN | 49.23 | ||
| 6 | 8 | 55 | ENNIS Nick | 48.53 | IRL/Crusaders | SEN | 49.62 | ||
| 7 | 7 | 54 | BUGGY Eoghan | 48.70 | IRL/St. Abbans | SEN | 49.99 | ||
| 8 | 1 | 56 | MURPHY Adam | 49.36 | IRL/SLOT | SEN | 50.11 |