400m U23 Men ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 6 | 197 | ARREY Brandon | Blarney/Inniscara A.C. | 48.43 | ||||
| 2 | 5 | 88 | IRWIN Shane | Finn Valley A.C. | 48.87 | ||||
| 3 | 3 | 155 | PEPPARD Paul | Monaghan Phoenix A.C. | 50.16 | ||||
| 4 | 4 | 228 | PENDER Jamie | St Abbans A.C | 50.24 | ||||
| 5 | 2 | 183 | WOODS Kevin | Crusaders A.C. | 51.99 | ||||
| 1 | 182 | MURPHY Adam | St. L. O'Toole A.C. | DNF |