EVENT 158 Open/Male 15 /Over 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Alexander Rowe | 16 | Co Salford | 2:36.83 |
| 4 | 4 | Shea Whiteley | 18 | Ramsbottom | |
| 5 | 3 | Andrew Dobbing | 19 | Bebington | |
| 6 | 1 | Ethan McGuinness | 15 | Ramsbottom | 2:44.26 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Joseph Ball | 16 | Preston | 2:26.13 |
| 2 | 15 | Andrew Clavis | 17 | Warrington W | 2:16.68 |
| 3 | 21 | Alexander Hornby | 17 | Wigan BEST | 2:17.50 |
| 4 | 28 | Samuel Sutcliffe | 15 | Ramsbottom | 2:14.50 |
| 5 | 24 | Adam Wright | 18 | Winsford | 2:16.92 |
| 6 | 18 | Alfie Owen | 15 | Wigan BEST | 2:18.40 |
| 7 | 12 | Elliot Mitchell | 17 | Aquabears | |
| 8 | 5 | Edward Ma | 15 | Winsford | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Joel Birtles | 18 | Aquabears | |
| 2 | 16 | Jaeden Lim | 17 | Stretford | 2:21.33 |
| 3 | 22 | Benjamin Ross | 16 | Co Salford | 2:28.76 |
| 4 | 29 | Luke Brussels | 16 | Co Manch Aq | 2:13.20 |
| 5 | 26 | Berdan Ordek | 16 | Co Liverpool | 2:17.46 |
| 6 | 19 | Max Harvey | 17 | Co Liverpool | |
| 7 | 13 | Thomas Hilton | 17 | Warrington W | 2:19.21 |
| 8 | 6 | Mark Owen | 15 | Bolton Metro | 2:27.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Owen Wilson | 15 | Ramsbottom | 2:19.35 |
| 2 | 17 | Leo Taylor | 18 | Leyland Barr | 2:17.63 |
| 3 | 23 | Oliver Crooks | 17 | Bolton Metro | 2:13.89 |
| 4 | 30 | Davey Unwin | 18 | Co Manch Aq | |
| 5 | 27 | Owen Whiteley | 18 | Ramsbottom | |
| 6 | 20 | Samuel Stout | 17 | Co Salford | 2:19.16 |
| 7 | 14 | Noah Lyons | 17 | Co Liverpool | 2:19.39 |
| 8 | 7 | Luke Horton | 17 | Carnforth | |