EVENT 104 Open/Male 50m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Varun PATEL | 11 | JCCS 8 | 1:40.49 |
| 2 | 3 | Martin TODD | 10 | JCCS 8 | 1:15.00 |
| 3 | 5 | Luke STEFFENSEN | 10 | Aire 8 | 1:13.00 |
| 4 | 7 | Montague LEEMAN | 8 | Rothwell 8 | 1:10.33 |
| 5 | 6 | Alexander MCINTOSH | 7 | Smeaton 8 | 1:10.56 |
| 6 | 4 | Matei MIHAILOV | 11 | JCCS 8 | 1:15.00 |
| 7 | 2 | Charlie ROTHWELL | 9 | Fearnville 8 | 1:23.13 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Jules BIOCK | 10 | Fearnville 8 | 1:09.04 |
| 1 | 11 | N KOLACZ APPLEYARD | 9 | Fearnville 8 | 1:08.03 |
| 2 | 13 | Myles WAKE | 9 | Fearnville 8 | 1:07.00 |
| 3 | 15 | Joshua WARD-PICKLES | 11 | Rothwell 8 | 1:05.62 |
| 4 | 17 | Flynn ALDRED | 9 | Smeaton 8 | 1:05.00 |
| 5 | 16 | Zach MCMENEMY | 10 | Rothwell 8 | 1:05.14 |
| 6 | 14 | Alfred GLENDINNING | 10 | JCCS 8 | 1:06.95 |
| 7 | 12 | Ralph ADBY | 10 | Rothwell 8 | 1:08.00 |
| 8 | 10 | Elijah BRIGHT | 11 | Kikrstall 8 | 1:09.00 |
| 9 | 8 | Oscar DUFFY | 12 | Rothwell 8 | 1:10.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 19 | Sebastian BECK | 12 | Holt Park 8 | 1:03.62 |
| 1 | 21 | Jack GELNDINNING | 11 | JCCS 8 | 1:02.25 |
| 2 | 23 | Mohammed TAHER | 11 | Holt Park 8 | 1:00.95 |
| 3 | 25 | Leo WILSON | 10 | Smeaton 8 | 1:00.00 |
| 4 | 27 | Louis NINAN | 9 | Fearnville 8 | 59.89 |
| 5 | 26 | Bailey HUNT | 9 | Morley 8 | 1:00.00 |
| 6 | 24 | Daniel PAHLAVAN | 10 | Fearnville 8 | 1:00.09 |
| 7 | 22 | Federico FURNISS | 9 | Scott Hall 8 | 1:01.48 |
| 8 | 20 | Marvin CAKALI | 12 | Holt Park 8 | 1:02.98 |
| 9 | 18 | Ben LIVERSIDGE | 11 | Morley 8 | 1:05.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 29 | Oliver BREEDON | 10 | Fearnville 8 | 57.68 |
| 1 | 31 | Finlay JONES | 10 | Fearnville 8 | 56.40 |
| 2 | 33 | Max COATES-STATECZNY | 12 | Kirkstall 8 | 56.00 |
| 3 | 35 | James WALL | 10 | Holt Park 8 | 55.55 |
| 4 | 37 | Luca DOUGLAS | 12 | Pudsey 8 | 53.00 |
| 5 | 36 | Ryan DRINKALL | 9 | JCCS 8 | 54.61 |
| 6 | 34 | Rex WALMSLEY | 9 | Scott Hall 8 | 55.57 |
| 7 | 32 | Joseph WOUTERS | 11 | Holt Park 8 | 56.01 |
| 8 | 30 | Purav SHAH | 9 | JCCS 8 | 56.91 |
| 9 | 28 | William BARKER | 10 | Smeaton 8 | 57.94 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 39 | Henry MUNRO | 10 | Scott Hall 8 | 51.41 |
| 1 | 41 | Harry FREE | 12 | Morley 8 | 50.91 |
| 2 | 43 | Jacob DOLBY | 12 | Pudsey 8 | 49.00 |
| 3 | 45 | Freddie HAWTHORN | 12 | Pudsey 8 | 48.54 |
| 4 | 47 | Christian SUTCLIFFE | 12 | Scott Hall 8 | 46.06 |
| 5 | 46 | Theo BEARDSMORE | 12 | Scott Hall 8 | 46.25 |
| 6 | 44 | Finley BROOKES | 12 | Pudsey 8 | 48.81 |
| 7 | 42 | Nicolas DASHINSKY | 10 | Fearnville 8 | 50.30 |
| 8 | 40 | Atticus KHAN | 11 | Scott Hall 8 | 51.00 |
| 9 | 38 | Elliott HICKS | 11 | JCCS 8 | 51.97 |