"400mH (0.914m/3'0"")" SEN Men, Heat:1 of 2 ; Official result since 16:47
Thomas Barr 48.65
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 76 | BARR Thomas | Ferrybank A.C. | 52.03 | Q | |||
| 2 | 5 | 123 | HARVEY Jason | Crusaders A.C. | 53.54 | Q | |||
| 3 | 6 | 246 | HALWAX Joe | Dundrum South Dublin A.C. | 55.23 | Q | |||
| 4 | 3 | 253 | LOCKE Cathal | Dooneen A.C. | 56.18 | q | |||
| 5 | 2 | 421 | FINNERTY Dan | Nenagh Olympic A.C. | 57.51 |