EVENT 110 Boys Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 2 | 1 | Matei STOICESCU | 10 | Kirkstall 8 | |
| 3 | 2 | Joseph FRIEND | 08 | Scott Hall 8 | 1:32.32 |
| 4 | 3 | Flint HARLEY | 08 | Scott Hall 8 | 1:30.15 |
| 5 | 4 | Joshua CRAVEN | 09 | Airborough 8 | 1:22.43 |
| 6 | 5 | James ANDREASEN | 10 | Co Leeds | 1:22.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 6 | Alexander THACKER | 10 | Co Leeds | 1:21.54 |
| 1 | 7 | Tom HEY | 09 | Co Leeds | 1:21.00 |
| 2 | 8 | Shaunak KHANVILKAR | 09 | Co Leeds | 1:17.29 |
| 3 | 9 | Samuel HILL | 09 | Co Leeds | 1:15.00 |
| 4 | 10 | Charlie HORNE | 09 | Co Leeds | 1:15.00 |
| 5 | 11 | Oliver MOONEY | 09 | Co Leeds | 1:13.47 |
| 6 | 12 | Luke PERMANI | 08 | Scott Hall 8 | 1:12.18 |
| 7 | 13 | Freddie DUMPHY | 08 | Scott Hall 8 | 1:11.36 |
| 8 | 14 | Harresyn DELANY-BLENKI | 07 | Morley 8 | 1:10.59 |
| 9 | 15 | William WILSON | 10 | Co Leeds | 1:06.78 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 16 | Oliver TAYLOR | 10 | Co Leeds | 1:06.00 |
| 1 | 17 | Daniel RUTTER | 08 | Co Leeds | 1:04.93 |
| 2 | 18 | Conor BUTTERWORTH | 07 | Scott Hall 8 | 1:04.31 |
| 3 | 19 | Luke HOSANY | 07 | Pudsey 8 | 1:04.00 |
| 4 | 20 | Yuvraj UBHI | 10 | Co Leeds | 1:02.00 |
| 5 | 21 | Aarya GUNA | 07 | Scott Hall 8 | 1:00.09 |
| 6 | 22 | Jacob O'DONNELL | 10 | Co Leeds | 59.85 |
| 7 | 23 | George BELLWOOD | 08 | Co Leeds | 58.02 |
| 8 | 24 | Oliver JOHNSTONE | 07 | Co Leeds | 57.92 |
| 9 | 25 | Jake PHELAN | 09 | Co Leeds | 56.98 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 27 | Oliver BROOKE | 09 | Co Leeds | 54.12 |
| 1 | 29 | Jacob BOGGON | 08 | Co Leeds | 51.51 |
| 2 | 31 | Zach CROWTHER | 08 | Co Leeds | 48.54 |
| 3 | 33 | Owen CARMODY | 10 | Co Leeds | 48.08 |
| 4 | 35 | Aarush SHINDE | 07 | Co Leeds | 47.21 |
| 5 | 34 | Callum RAVEN | 08 | Co Leeds | 47.30 |
| 6 | 32 | Lucas PIERCY | 08 | Co Leeds | 48.50 |
| 7 | 30 | George CARRY | 08 | Co Leeds | 49.38 |
| 8 | 28 | Callum BROOK | 09 | Co Leeds | 53.45 |
| 9 | 26 | Elisha YANSANEH | 09 | Kirkstall 8 | 56.00 |