800m U23 Men, Heat:1 of 2 ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 2 | 109 | HAYES Conall | Le Cheile A.C. | 2:02.40 | Q | |||
| 2 | 3 | 86 | BYRNE Lee | Rathfarnham W.S.A.F. A.C. | 2:02.57 | Q | |||
| 3 | 4 | 313 | KILGANNON Peter | Ratoath A.C. | 2:02.64 | q | |||
| 4 | 1 | 100 | CARMODY Mark | An Bru A.C | 2:05.03 | ||||
| 5 | 6 | 328 | HOLLAND Stephen | Bantry A.C | 2:05.51 | ||||
| 6 | 4 | 280 | DUNICAN Ethan | Tullamore Harriers A.C. | 2:06.19 | ||||
| 7 | 5 | 269 | KENNEDY Robert | Templemore A.C. | 2:07.99 |