EVENT 117 Open/Male 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Jacob BAILEY | 8 | Co Leeds | 1:11.99 |
| 2 | 4 | Oscar DARK | 9 | Co Leeds | 1:06.00 |
| 3 | 6 | Wilbur GIBSON | 10 | Co Leeds | 1:01.30 |
| 4 | 8 | Arda GUNGOR | 9 | Co Leeds | 58.79 |
| 5 | 7 | Emmett PHILLIS | 9 | Co Leeds | 1:00.00 |
| 6 | 5 | William HAMER | 9 | Co Leeds | 1:01.97 |
| 7 | 3 | Jake PHILLIPS | 8 | Co Leeds | 1:07.37 |
| 8 | 1 | Alexander LUMLEY | 9 | Co Leeds | 1:19.11 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 10 | Tymon PALCZYNSKI | 10 | Co Leeds | 55.57 |
| 1 | 12 | Harry RIDER | 11 | Co Leeds | 55.10 |
| 2 | 14 | Etienne WILSON | 10 | Co Leeds | 46.82 |
| 3 | 16 | Ted TROUSDALE | 10 | Co Leeds | 42.13 |
| 4 | 18 | Connor MACFADYEN | 10 | Co Leeds | 41.80 |
| 5 | 17 | Toby GILL | 9 | Co Leeds | 41.80 |
| 6 | 15 | Louie TRAVIS | 10 | Co Leeds | 46.67 |
| 7 | 13 | Max HARDCASTLE | 10 | Co Leeds | 49.71 |
| 8 | 11 | Marcus PICKARD | 10 | Co Leeds | 55.48 |
| 9 | 9 | Billy PARTON | 10 | Co Leeds | 55.80 |