1500m U18 Men, Heat:2 of 2 ; Official result since 12:21
CBP 4:00.65 Mark Christie
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 787 | BLAIR Hugo | Waterford A.C. | 4:15.18 | Q | |||
| 2 | 11 | 783 | RYAN Conor | Templemore A.C. | 4:15.63 | Q | |||
| 3 | 8 | 209 | CORRY Sean | Omagh Harriers | 4:16.14 | Q | |||
| 4 | 1 | 346 | LACEY Daniel | Clonliffe Harriers A.C. | 4:16.52 | Q | |||
| 5 | 7 | 180 | MAHER Jack | Westport A.C. | 4:17.16 | q | |||
| 6 | 10 | 30 | CARR Ben | Finn Valley A.C. | 4:18.14 | q | |||
| 7 | 9 | 547 | SCULLY Troy | Greystones & District A.C. | 4:23.49 | q | |||
| 8 | 6 | 555 | COLLINS Johnny | Kilkenny City Harriers A.C. | 4:27.81 | ||||
| 9 | 5 | 203 | TEREK Sean | City of Lisburn AC | 4:28.33 | ||||
| 10 | 2 | 807 | SHERIDAN Ryan | Bohermeen A.C. | 4:32.26 | ||||
| 11 | 3 | 348 | BYRNE Jordan | Clonliffe Harriers A.C. | 4:33.08 |