EVENT 306 Open/Male 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Dexter ROWLANDS | 11 | | Co Leeds | 3:51.00 |
| 2 | 3 | Jake VICARS | 29 | S14 | Pontefract | 3:45.00 |
| 3 | 5 | Finley GILL | 10 | | Co Leeds | 3:30.20 |
| 4 | 7 | Callum YOUNG | 10 | | Co Leeds | 3:27.85 |
| 5 | 6 | David MCINTOSH | 9 | | Co Leeds | 3:29.22 |
| 6 | 4 | Gregory GIBBONS | 13 | | Warrington W | 3:40.00 |
| 7 | 2 | Toby BIGWOOD | 10 | | Blackburn | 3:47.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 9 | Abdullah MOKHLISSE | 15 | | Chapeltown | 3:24.11 |
| 1 | 11 | Olaf GRUDOWSKI | 13 | | Co Leeds | 3:02.93 |
| 2 | 13 | Oliver BARKER | 12 | | Co Leeds | 2:54.04 |
| 3 | 15 | Harley GILL | 13 | | Co Leeds | 2:32.00 |
| 4 | 17 | Jackson CLARKE | 15 | | Co Leeds | 2:29.67 |
| 5 | 16 | Oliver ATHA | 13 | | Co Leeds | 2:31.31 |
| 6 | 14 | Harry DIXON | 11 | | Co Leeds | 2:47.87 |
| 7 | 12 | David GRIGORE | 12 | | Co Leeds | 3:00.00 |
| 8 | 10 | Finley SMITH | 10 | | Co Leeds | 3:21.94 |
| 9 | 8 | James HILTON | 12 | | Aquabears | 3:26.20 |