400m U23 Women ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 5 | 361 | MCGRORY Kelly | Tir Chonaill A.C | U23 | 58.62 | |||
| 2 | 4 | 271 | BRADY Aine | Annalee A.C. | 60.31 | ||||
| 3 | 3 | 204 | O'CONNOR Denise | Tramore A.C. | 61.26 | ||||
| 4 | 2 | 167 | BYRNE Hannah | Raheny Shamrock A.C. | 61.46 | ||||
| 5 | 6 | 356 | DUNNE Rachel | Dundrum South Dublin | U23 | 63.75 | |||
| 6 | 1 | 202 | O'CARROLL Aoife | Tralee Harriers A.C. | 67.12 |