EVENT 118 Open/Male 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Marvin CAKALI | 12 | Holt Park 8 | 1:21.59 |
| 1 | 3 | Ralph ADBY | 10 | Rothwell 8 | 1:17.00 |
| 2 | 5 | Ethan WRIGHT | 10 | Smeaton 8 | 1:09.00 |
| 3 | 7 | Max COATES-STATECZNY | 12 | Kirkstall 8 | 1:06.00 |
| 4 | 9 | Harry FREE | 12 | Morley 8 | 59.88 |
| 5 | 8 | Ryan DRINKALL | 9 | JCCS 8 | 1:04.68 |
| 6 | 6 | Henry MUNRO | 10 | Scott Hall 8 | 1:07.00 |
| 7 | 4 | Rex WALMSLEY | 9 | Scott Hall 8 | 1:10.63 |
| 8 | 2 | Mohammed TAHER | 11 | Holt Park 8 | 1:18.63 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 11 | Nicolas DASHINSKY | 10 | Fearnville 8 | 59.37 |
| 1 | 13 | Arthur WARING | 10 | Holt Park 8 | 58.73 |
| 2 | 15 | Christian SUTCLIFFE | 12 | Scott Hall 8 | 54.29 |
| 3 | 17 | Finley BROOKES | 12 | Pudsey 8 | 52.85 |
| 4 | 19 | Theo BEARDSMORE | 12 | Scott Hall 8 | 46.72 |
| 5 | 18 | Atticus KHAN | 11 | Scott Hall 8 | 52.61 |
| 6 | 16 | Finlay JONES | 10 | Fearnville 8 | 53.77 |
| 7 | 14 | Elliott HICKS | 11 | JCCS 8 | 54.81 |
| 8 | 12 | Jacob DOLBY | 12 | Pudsey 8 | 59.00 |
| 9 | 10 | Joseph WOUTERS | 11 | Holt Park 8 | 59.54 |