400mH Men ; Official result since 20:53
| Rank | Lane | ID | Name | SB | Team | Cat | Result | Info | Video |
| 1 | 4 | 1626 | Power Eoin | St. Joseph's Kilkenny | Jun | 55.76 | |||
| 2 | 3 | 1620 | Finnerty Dan | Nenagh Olympic AC | Jun | 56.30 | |||
| 3 | 5 | 1627 | Clancy Diarmuid | Abbey Striders | Jun | 56.94 | 2'9" | ||
| 6 | 1630 | Fitzpatrick Oisin | Nenagh | Sen | DNF | ||||
| 7 | 1628 | Walsh Ray | Abbey Striders | Jun | DNF |