1500m U18 Men, Heat:1 of 2 ; Official result since 12:14
3.53.37 Shane Fitzsimons
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 9 | 317 | O'LOUGHLIN Louis | Donore Harriers | 4:27.05 | Q | |||
| 2 | 10 | 288 | DEASY Ben | Ennis Track A.C. | 4:27.77 | Q | |||
| 3 | 7 | 315 | BRENNAN Aaron | Galway City Harriers A.C. | 4:29.09 | Q | |||
| 4 | 5 | 290 | BAGGE Jake | Ferrybank A.C. | 4:29.52 | Q | |||
| 5 | 2 | 291 | O'GRADY Kevin | Dooneen A.C. | 4:30.60 | q | |||
| 6 | 8 | 312 | KERINS Michael | North Sligo A.C. | 4:31.93 | q | |||
| 7 | 3 | 325 | KING Philip | Tullamore Harriers A.C. | 4:34.70 | q | |||
| 8 | 1 | 294 | O'CAOLAIN Oran | Monaghan Phoenix AC | 4:43.10 | ||||
| 9 | 6 | 938 | MATHEWS Conor | Dunleer A.C. | 4:44.01 | ||||
| 10 | 4 | 327 | SHARKEY Declan | Tir Chonaill A.C. | 4:47.45 |