400m U17 Women, Heat:1 of 3 ; Official result since 11:57
CBP 56.13 Davicia Patterson
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 3 | 653 | MCCANN Rachel | North Down AC | 59.92 | Q | |||
| 2 | 8 | 910 | FITZSIMONS Rebecca | Clonliffe Harriers A.C. | 1:00.47 | Q | |||
| 3 | 7 | 703 | OGHUVBU Danielle | Naas A.C. | 1:00.48 | ||||
| 4 | 5 | 470 | HEALY Tara | Leevale A.C. | 1:01.80 | ||||
| 5 | 6 | 186 | GERAGHTY Laoise | Galway City Harriers A.C. | 1:02.20 | ||||
| 6 | 4 | 961 | LAWLESS Katie | Greystones & District A.C. | 1:03.19 |