EVENT 110 Boys Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Jack BASTIAN | 9 | Kirkstall 8 | 1:46.00 |
| 4 | 3 | Harley HENDERSON | 8 | John Smeaton | 1:30.00 |
| 5 | 2 | Joseph FRIEND | 10 | Scott Hall 8 | 1:32.32 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 5 | Oliver POW | 9 | Morley 8 | 1:15.71 |
| 2 | 7 | Shaunak KHANVILKAR | 9 | Morley 8 | 1:15.09 |
| 3 | 9 | Oliver MOONEY | 9 | Co Leeds | 1:11.48 |
| 4 | 11 | Ailbe MCNULTY | 9 | Morley 8 | 1:09.84 |
| 5 | 10 | Freddie DUMPHY | 10 | Scott Hall 8 | 1:11.36 |
| 6 | 8 | Jacob O'DONNELL | 8 | Co Leeds | 1:12.62 |
| 7 | 6 | Alexander THACKER | 8 | Co Leeds | 1:15.64 |
| 8 | 4 | William WILSON | 8 | Scott Hall 8 | 1:23.15 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 13 | Oliver BROOKE | 9 | Co Leeds | 1:07.00 |
| 1 | 15 | Abdullah MOKHLISSE | 9 | Co Leeds | 1:06.00 |
| 2 | 17 | Zachary CROWTHER | 10 | Co Leeds | 1:05.72 |
| 3 | 19 | Maxwell FORD | 10 | Co Leeds | 1:05.00 |
| 4 | 21 | Amos PEARSE DE WOLF | 9 | Co Leeds | 1:00.00 |
| 5 | 20 | Jacob BOGGON | 10 | John Smeaton | 1:01.85 |
| 6 | 18 | Callum BROOK | 9 | Co Leeds | 1:05.10 |
| 7 | 16 | Daniel RUTTER | 10 | Co Leeds | 1:05.86 |
| 8 | 14 | Aaron JACKSON | 12 | Scott Hall 8 | 1:06.64 |
| 9 | 12 | David AKEROYD | 10 | Airborough 8 | 1:07.38 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 23 | Jake PHELAN | 9 | Co Leeds | 58.39 |
| 1 | 25 | Joseph HALL | 10 | Co Leeds | 57.60 |
| 2 | 27 | Elisha YANSANEH | 9 | Kirkstall 8 | 57.00 |
| 3 | 29 | Owen CARMODY | 8 | Co Leeds | 56.43 |
| 4 | 31 | Aarush SHINDE | 11 | Co Leeds | 51.95 |
| 5 | 30 | Jack BOOTH | 11 | Pudsey 8 | 52.23 |
| 6 | 28 | George CARRY | 10 | Co Leeds | 56.65 |
| 7 | 26 | Harry LEWIS | 10 | Wetherby 8 | 57.20 |
| 8 | 24 | Oliver JOHNSTONE | 11 | Co Leeds | 57.92 |
| 9 | 22 | George BELLWOOD | 10 | Co Leeds | 58.43 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 33 | Lucas PIERCY | 10 | Co Leeds | 50.89 |
| 1 | 35 | Oliver THACKER | 11 | Co Leeds | 47.94 |
| 2 | 37 | Asher MAXFIELD | 10 | Co Leeds | 47.25 |
| 3 | 39 | Luke DYER | 11 | Co Leeds | 43.97 |
| 4 | 41 | Oliver STEELE | 11 | Co Leeds | 39.64 |
| 5 | 40 | Matthew JAMES | 10 | Co Leeds | 42.40 |
| 6 | 38 | Edward COLLINS | 10 | Co Leeds | 46.23 |
| 7 | 36 | Oscar HOBSON | 11 | Pudsey 8 | 47.49 |
| 8 | 34 | Callum RAVEN | 10 | Co Leeds | 49.16 |
| 9 | 32 | Isaac FOY | 10 | Co Leeds | 51.41 |