EVENT 502 Open/Male 14 /Under 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Leo Craven | 12 | Warrington W | |
| 2 | 3 | Alastair Buis | 12 | Carlisle Aq | |
| 3 | 5 | William Thorley | 12 | Aquabears | |
| 4 | 7 | Sebastian Boughen | 12 | Preston | |
| 5 | 6 | Walter Fisher | 12 | Bolton Metro | |
| 6 | 4 | James Hilton | 12 | Aquabears | |
| 7 | 2 | Thomas Holliday | 11 | Copeland | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Adam Alkhabbaz | 12 | Co Manch Aq | |
| 2 | 11 | Callum Cheung | 12 | Co Liverpool | |
| 3 | 13 | Jack Kennedy | 12 | Stretford | 1:19.66 |
| 4 | 15 | Evan Wong | 11 | Preston | |
| 5 | 14 | William Stamper | 12 | Co Liverpool | 1:20.67 |
| 6 | 12 | James Boyers | 12 | Wigan BEST | |
| 7 | 10 | Max Dronsfield | 12 | Stockport Mo | |
| 8 | 8 | Thomas Woodruff | 12 | Carnforth | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | Daniel Rykowski | 12 | Leyland Barr | |
| 2 | 19 | Oscar O'Connell | 12 | Blackpool Aq | 1:19.76 |
| 3 | 21 | Samuel Higginbottom | 12 | Lancaster | 1:20.51 |
| 4 | 23 | Ben Urmston | 12 | Wigan BEST | |
| 5 | 22 | Thomas Owens | 11 | Leyland Barr | |
| 6 | 20 | Freddie Garner | 11 | Prescot | |
| 7 | 18 | Ethan Craven | 11 | Warrington W | |
| 8 | 16 | Oscar Bromwell | 12 | Wigan BEST | |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 25 | Alfie Butterworth | 12 | Winsford | |
| 2 | 27 | Leo Ashcroft | 12 | Wigan BEST | 1:17.73 |
| 3 | 29 | Bogdan Tonu | 13 | Bolton Metro | 1:15.29 |
| 4 | 31 | Daniel Lesti | 12 | Co Salford | 1:17.88 |
| 5 | 30 | Alex Murray | 12 | Warrington W | 1:20.48 |
| 6 | 28 | Casey Costain | 13 | Wirral Metro | 1:15.20 |
| 7 | 26 | Oscar Maddrell | 12 | Io Man | 1:21.01 |
| 8 | 24 | Kaloyan Nedyalkov | 12 | Workington | 1:19.45 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 35 | Carter Kneale | 13 | Io Man | 1:14.08 |
| 2 | 41 | Luke Goddard | 13 | Copeland | |
| 3 | 47 | Rocco Wilson | 14 | Cockermouth | |
| 4 | 53 | Elliott Hughes | 14 | Trafford Met | 1:04.37 |
| 5 | 50 | Daniel Houghton-Butler | 14 | Halton | 1:09.18 |
| 6 | 44 | Jacob Baker | 13 | Aquabears | 1:10.58 |
| 7 | 38 | Thomas Ross | 13 | Carlisle Aq | 1:16.08 |
| 8 | 32 | Jasper De Glopper | 13 | Warrington W | |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 36 | Benji Sutcliffe | 13 | Ramsbottom | 1:14.62 |
| 2 | 42 | Daniel French | 13 | Wirral Metro | 1:12.14 |
| 3 | 48 | James Vaughan | 14 | Wigan BEST | 1:07.87 |
| 4 | 54 | Cain Ashton | 14 | Co Manch Aq | 1:05.36 |
| 5 | 51 | Cole Hood | 14 | Wigan BEST | 1:06.92 |
| 6 | 45 | Dylan Gregory | 13 | Co Liverpool | 1:11.22 |
| 7 | 39 | James Graham | 13 | Co Liverpool | |
| 8 | 33 | Gabriel Holt | 13 | Winsford | |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Albion Dobrushi | 11 | Co Liverpool | 1:17.23 |
| 2 | 43 | Gus Fraser | 13 | Winsford | 1:12.20 |
| 3 | 49 | Mason Grady | 14 | Stockport Mo | 1:06.97 |
| 4 | 55 | Samuel Williams | 14 | Bolton Metro | 1:03.86 |
| 5 | 52 | Ben Stephenson | 13 | Garston | 1:05.95 |
| 6 | 46 | Corey Owens | 14 | Stockport Mo | 1:10.82 |
| 7 | 40 | Ed Pearson | 13 | Io Man | |
| 8 | 34 | William Birchall | 13 | Satellite | |