EVENT 110 Boy Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Liam LI | 8 | Co Leeds | 1:30.00 |
| 4 | 4 | Byron GILBERT | 11 | Co Leeds | 1:30.00 |
| 5 | 3 | Danny RAWLINGS | 9 | Co Leeds NR | 1:30.00 |
| 6 | 1 | Lexie TAYLOR | 12 | Airborough 8 | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 6 | Jacob JONES | 10 | Rothwell 8 | 1:22.63 |
| 1 | 8 | Daniel HIRST | 11 | Kirkstall 8 | 1:16.14 |
| 2 | 10 | Oscar HUSSEY | 10 | Co Leeds NR | 1:15.19 |
| 3 | 12 | George JONES | 9 | Co Leeds | 1:14.99 |
| 4 | 14 | Zach WHITTLESTON | 12 | JCCS 8 | 1:13.22 |
| 5 | 13 | Jacob DYER | 10 | Co Leeds | 1:14.88 |
| 6 | 11 | Archie RUSSELL | 10 | Co Leeds NR | 1:15.00 |
| 7 | 9 | Joseph STEWART | 11 | Kirkstall 8 | 1:15.38 |
| 8 | 7 | Euan CARMODY | 9 | Co Leeds | 1:17.36 |
| 9 | 5 | Luke EARNSHAW | 12 | Morley 8 | 1:22.94 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 16 | Anthony BZDYRA | 13 | Morley 8 | 1:06.67 |
| 1 | 18 | James MERRIFIELD | 10 | Co Leeds NR | 1:04.23 |
| 2 | 20 | Joseph CARR | 13 | Wetherby 8 | 1:03.00 |
| 3 | 22 | William DUNN | 11 | Co Leeds | 59.30 |
| 4 | 24 | Alexander LEWIS | 11 | Co Leeds NR | 58.60 |
| 5 | 23 | Artemiy BARANKOV | 13 | Pudsey 8 | 58.72 |
| 6 | 21 | Isaac WEEKS | 11 | Co Leeds NR | 1:03.00 |
| 7 | 19 | Ethan MEWSE | 11 | Co Leeds | 1:03.29 |
| 8 | 17 | Max HASWELL | 9 | Co Leeds | 1:04.78 |
| 9 | 15 | Louis WALKER | 10 | Co Leeds | 1:07.10 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 26 | Felix GILLILAND | 11 | Co Leeds | 57.27 |
| 1 | 28 | Alex CHRISTIE | 12 | Scott Hall 8 | 55.70 |
| 2 | 30 | Leo LI | 10 | Co Leeds | 53.80 |
| 3 | 32 | Harry DIXON | 9 | Co Leeds | 52.70 |
| 4 | 34 | Demilade AYEMOWA | 12 | Co Leeds | 49.34 |
| 5 | 33 | Ryan MILNER | 13 | Co Leeds NR | 51.00 |
| 6 | 31 | Robson HART | 9 | Co Leeds | 53.28 |
| 7 | 29 | Olaf GRUDOWSKI | 11 | Co Leeds NR | 54.74 |
| 8 | 27 | Arvind LALL | 12 | Scott Hall 8 | 57.22 |
| 9 | 25 | Daniel BREEDON | 11 | Scott Hall 8 | 57.75 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 36 | Lucas WELLS | 11 | Co Leeds | 48.40 |
| 1 | 38 | Dean NENOV | 13 | Co Leeds | 47.10 |
| 2 | 40 | William LANCASHIRE | 12 | Scott Hall 8 | 46.61 |
| 3 | 42 | Reggie SPENCE | 13 | Co Leeds | 39.31 |
| 4 | 44 | Alex OLCHOWIK | 13 | Co Leeds NR | 38.98 |
| 5 | 43 | Sebastian HUNTER | 12 | Co Leeds | 39.10 |
| 6 | 41 | Rory KING | 13 | Co Leeds | 40.90 |
| 7 | 39 | Benjamin MORRIS | 13 | Co Leeds | 46.72 |
| 8 | 37 | Benjamin ETHEVE | 14 | Wetherby 8 | 48.11 |
| 9 | 35 | James ANDREASEN | 12 | Co Leeds | 49.30 |