EVENT 108 Boys Open 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Oliver BOWDEN | 10 | John Smeaton | 1:44.50 |
| 2 | 4 | Jack BASTIAN | 9 | Kirkstall 8 | 1:29.00 |
| 3 | 6 | Arthur OWENS | 9 | John Smeaton | 1:25.55 |
| 4 | 8 | Jamie ANDREASEN | 8 | Morley 8 | 1:19.57 |
| 5 | 7 | William WILSON | 8 | Scott Hall 8 | 1:25.41 |
| 6 | 5 | Reece WEBBER | 9 | Morley 8 | 1:27.94 |
| 7 | 3 | Lewis WIDDOWSON | 8 | Morley 8 | 1:35.05 |
| 8 | 1 | Harley HENDERSON | 8 | John Smeaton | 1:46.10 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 10 | Alexander THACKER | 8 | Co Leeds | 1:17.81 |
| 1 | 12 | Jacob FAWCETT | 10 | Airborough 8 | 1:15.00 |
| 2 | 14 | Ben ETHEVE | 10 | Wetherby 8 | 1:12.40 |
| 3 | 16 | Oliver POW | 9 | Morley 8 | 1:11.97 |
| 4 | 18 | Jamie ROBERTS | 10 | Co Leeds | 1:10.15 |
| 5 | 17 | Jack WILBY | 10 | Morley 8 | 1:11.90 |
| 6 | 15 | Joseph FRIEND | 10 | Scott Hall 8 | 1:12.15 |
| 7 | 13 | Harry LEWIS | 10 | Wetherby 8 | 1:13.20 |
| 8 | 11 | David AKEROYD | 10 | Airborough 8 | 1:15.86 |
| 9 | 9 | Ailbe MCNULTY | 9 | Morley 8 | 1:18.39 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 20 | Flint HARLEY | 10 | Scott Hall 8 | 1:09.00 |
| 1 | 22 | Oliver BROOKE | 9 | Co Leeds | 1:08.00 |
| 2 | 24 | Shaunak KHANVILKAR | 9 | Morley 8 | 1:06.35 |
| 3 | 26 | Callum RAVEN | 10 | Co Leeds | 1:04.79 |
| 4 | 28 | Jake PHELAN | 9 | Co Leeds | 1:03.49 |
| 5 | 27 | Aaron JACKSON | 12 | Scott Hall 8 | 1:04.68 |
| 6 | 25 | Oliver MOONEY | 9 | Co Leeds | 1:06.18 |
| 7 | 23 | Jacob BOGGON | 10 | John Smeaton | 1:06.63 |
| 8 | 21 | Oliver HART | 9 | Airborough 8 | 1:08.00 |
| 9 | 19 | Callum BROOK | 9 | Co Leeds | 1:09.53 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 30 | Harry SOUTHAM | 11 | Pudsey 8 | 1:03.00 |
| 1 | 32 | Aarush SHINDE | 11 | Co Leeds | 1:02.88 |
| 2 | 34 | Oliver FAWCETT | 12 | Airborough 8 | 1:02.00 |
| 3 | 36 | Elisha YANSANEH | 9 | Kirkstall 8 | 1:01.00 |
| 4 | 38 | Alfred KEMP | 10 | Pudsey 8 | 1:00.00 |
| 5 | 37 | Antoni WEGRZYNOWSKI | 10 | John Smeaton | 1:00.65 |
| 6 | 35 | Oliver JOHNSTONE | 11 | Co Leeds | 1:01.76 |
| 7 | 33 | Jacob O'DONNELL | 8 | Co Leeds | 1:02.39 |
| 8 | 31 | Abdullah MOKHLISSE | 9 | Co Leeds | 1:03.00 |
| 9 | 29 | Freddie DUMPHY | 10 | Scott Hall 8 | 1:03.47 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 40 | Daniel RUTTER | 10 | Co Leeds | 59.80 |
| 1 | 42 | Archie BROUGHTON | 10 | Co Leeds | 59.00 |
| 2 | 44 | George BELLWOOD | 10 | Co Leeds | 57.04 |
| 3 | 46 | Amos PEARSE DE WOLF | 9 | Co Leeds | 56.45 |
| 4 | 48 | Luke DYER | 11 | Co Leeds | 55.41 |
| 5 | 47 | Matthew JAMES | 10 | Co Leeds | 56.27 |
| 6 | 45 | Jack BOOTH | 11 | Pudsey 8 | 56.60 |
| 7 | 43 | Maxwell FORD | 10 | Co Leeds | 58.20 |
| 8 | 41 | Ewan KITE | 9 | Pudsey 8 | 59.21 |
| 9 | 39 | Owen CARMODY | 8 | Co Leeds | 59.90 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 50 | George CARRY | 10 | Co Leeds | 54.05 |
| 1 | 52 | Oliver STEELE | 11 | Co Leeds | 53.36 |
| 2 | 54 | Asher MAXFIELD | 10 | Co Leeds | 52.47 |
| 3 | 56 | Edward COLLINS | 10 | Co Leeds | 51.84 |
| 4 | 58 | Oscar HOBSON | 11 | Pudsey 8 | 48.20 |
| 5 | 57 | Oliver THACKER | 11 | Co Leeds | 49.58 |
| 6 | 55 | Lucas PIERCY | 10 | Co Leeds | 52.15 |
| 7 | 53 | Zachary CROWTHER | 10 | Co Leeds | 52.77 |
| 8 | 51 | Joseph HALL | 10 | Co Leeds | 53.80 |
| 9 | 49 | Isaac FOY | 10 | Co Leeds | 54.71 |