800 meter Sen Men, Heat:3 of 3 ; Official result since 17:21
| Rank | Lane | ID | Name | SB | Team | Cat | Result | Info | Video |
| 1 | 1 | 327 | PURCELL Harry | Trim A.C. | Sen | 1:54.77 | Q | ||
| 2 | 3 | 186 | VALTERS Kristaps | Clonliffe Harriers A.C. | Sen | 1:55.41 | Q | ||
| 3 | 7 | 32 | CAMPBELL Garry | Dunleer A.C. | Sen | 1:55.87 | q | ||
| 4 | 5 | 111 | BÜTTNER Fionn | Dundrum South Dublin A.C. | Sen | 1:57.16 | q | ||
| 5 | 4 | 150 | O'CALLAGHAN Oisin | Newry AC | Sen | 1:59.52 | |||
| 6 | 6 | 77 | BROWNE Eoin | Ferrybank A.C. | Sen | 2:06.89 | |||
| 7 | 2 | 229 | DEERY Shaun | Olympian & Youth A.C. | Sen | 2:13.16 |