EVENT 110 Boys Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Nathaniel MYSZEWSKI | 10 | JCCS 8 | |
| 4 | 3 | Matthew OGBUAGU | 11 | Co Leeds | |
| 5 | 2 | Adam MOHAMED | 8 | Co Leeds | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 5 | Yusef DOURANDISH | 9 | Co Leeds | |
| 1 | 7 | Joe DIXON | 8 | Co Leeds | |
| 2 | 9 | Benjamin FALKINGHAM | 11 | Morley 8 | |
| 3 | 11 | Harvey BLACKBURN | 10 | Armley 8 | 1:21.32 |
| 4 | 13 | Alexander EASTHAM | 10 | Kirkstall 8 | 1:16.00 |
| 5 | 12 | Adam OLCHOWIK | 9 | Co Leeds | 1:17.00 |
| 6 | 10 | James COVICK | 11 | Rothwell 8 | 1:45.00 |
| 7 | 8 | Theo SIRA | 10 | Co Leeds | |
| 8 | 6 | Karel BOHM | 10 | Co Leeds | |
| 9 | 4 | Ted WINGFIELD | 9 | Co Leeds | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 15 | Oladimeji OLAJIDE | 12 | Holt Park 8 | 1:11.29 |
| 1 | 17 | Cameron EATON | 11 | Rothwell 8 | 1:10.00 |
| 2 | 19 | Dylan WARREN | 11 | Holt Park 8 | 1:09.81 |
| 3 | 21 | George BEILBY-WOODWARD | 9 | Co Leeds | 1:08.73 |
| 4 | 23 | Finley SMITH | 8 | Co Leeds | 1:08.32 |
| 5 | 22 | Albert OLCHOWIK | 11 | Co Leeds | 1:08.40 |
| 6 | 20 | Mustafa RAZA | 9 | Co Leeds | 1:09.08 |
| 7 | 18 | Yin Ho Adrian CHAN | 10 | Co Leeds | 1:09.83 |
| 8 | 16 | Jack WALES | 11 | Rothwell 8 | 1:10.00 |
| 9 | 14 | Toby FILLINGHAM | 10 | Pudsey 8 | 1:15.78 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 25 | Jacob CAWOOD | 9 | Morley 8 | 1:06.00 |
| 1 | 27 | Harley GILL | 11 | Morley 8 | 1:04.00 |
| 2 | 29 | Edgar TRAVISS TURNER | 11 | Scott Hall 8 | 1:03.12 |
| 3 | 31 | Arshak RAHMANI | 10 | Holt Park 8 | 1:02.91 |
| 4 | 33 | Muhammad RAZA | 11 | Co Leeds | 1:01.33 |
| 5 | 32 | Flynn DYSON | 11 | Morley 8 | 1:02.61 |
| 6 | 30 | James ROACH | 10 | Co Leeds | 1:03.10 |
| 7 | 28 | Toby FRANKLIN | 11 | Pudsey 8 | 1:03.67 |
| 8 | 26 | Tyler GREEN | 10 | Co Leeds | 1:05.25 |
| 9 | 24 | Fraiser GALBRAITH | 9 | Co Leeds | 1:06.44 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 35 | Callum WOODS | 11 | Morley 8 | 59.60 |
| 1 | 37 | Ben COLLEDGE | 9 | Pudsey 8 | 59.59 |
| 2 | 39 | Evan TOWNSEND | 10 | Pudsey 8 | 58.82 |
| 3 | 41 | Barney HOBBS | 11 | Co Leeds | 54.32 |
| 4 | 43 | Dominykas JAGMINAS | 12 | Rothwell 8 | 52.67 |
| 5 | 42 | James DEVERILL | 11 | Co Leeds | 53.98 |
| 6 | 40 | Lewis LUNG | 10 | Co Leeds | 57.00 |
| 7 | 38 | Jack YOUNG | 12 | Pudsey 8 | 59.52 |
| 8 | 36 | Adam ROSE | 10 | Pudsey 8 | 59.60 |
| 9 | 34 | Daniel HIRST | 12 | Kirkstall 8 | 1:00.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 45 | Benjamin CLARK | 12 | Co Leeds | 52.44 |
| 1 | 47 | Zachary HOGG | 11 | Co Leeds | 51.80 |
| 2 | 49 | Charlie BRADLEY | 11 | Co Leeds | 50.64 |
| 3 | 51 | Jacob DYER | 11 | Co Leeds | 49.90 |
| 4 | 53 | Liam LI | 9 | Co Leeds | 47.64 |
| 5 | 52 | Tomas BICKERS | 11 | Co Leeds | 49.84 |
| 6 | 50 | Daniel RAWLINGS | 10 | Co Leeds | 49.96 |
| 7 | 48 | Jacob JONES | 11 | Co Leeds | 51.43 |
| 8 | 46 | Oscar CALAM | 10 | Co Leeds | 52.23 |
| 9 | 44 | Samuel FORD | 9 | Co Leeds | 52.47 |