"400mH (0.762m/2'6"")" SEN Women, Heat:1 of 2 ; Official result since 16:46
Susan Smith 54.31
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 3 | 410 | MCGRORY Kelly | Tír Chonaill A.C. | 1:03.34 | Q | |||
| 2 | 5 | 345 | MCGOWAN Kate | Tír Chonaill A.C. | 1:04.99 | Q | |||
| 3 | 2 | 488 | DUNNE Karen | Bohermeen A.C. | 1:08.22 | Q | |||
| 4 | 7 | 377 | MACKEY Caoimhe | Donore Harriers | 1:10.08 | q | |||
| 5 | 6 | 160 | DOYLE Sarah | Tallaght A.C. | 1:10.44 | ||||
| 4 | 80 | BARR Jessie | Ferrybank A.C. | DNS |