EVENT 108 Men Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 3 | Lewis Brodie | 14 | Stockport Mo | 5:11.32 |
| 2 | 5 | Thomas Denham-Everett | 18 | Satellite | 5:07.49 |
| 3 | 7 | William Line | 15 | Winsford | 5:16.23 |
| 4 | 9 | Andrew Clavis | 15 | Prescot | 5:05.95 |
| 5 | 8 | Jack White | 16 | Warrington W | 5:01.55 |
| 6 | 6 | Jack Pritchard | 15 | Wigan BEST | 5:13.52 |
| 7 | 4 | Jamie Ball | 18 | Burnley BOBC | 5:15.76 |
| 8 | 1 | Jared Cross | 15 | Preston | 5:05.71 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Andrew Dobbing | 17 | Bebington | 5:06.51 |
| 2 | 13 | Jamie Lawler | 16 | Warrington W | 5:07.18 |
| 3 | 15 | Oliver Crooks | 15 | Bolton Metro | 5:00.13 |
| 4 | 17 | Leo Taylor | 16 | Leyland Barr | 4:53.62 |
| 5 | 16 | George Young | 17 | Winsford | 5:07.18 |
| 6 | 14 | Luke Brussels | 14 | Co Manch Aq | 5:09.85 |
| 7 | 12 | Dylan Fung | 15 | Stockport Mo | 4:48.55 |
| 8 | 10 | Shea Whiteley | 16 | Ramsbottom | 5:04.42 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 19 | Noah Harrison | 17 | Stockport Mo | 5:02.65 |
| 2 | 23 | Berdan Ordek | 14 | Warrington W | 4:58.58 |
| 3 | 25 | Matthew Warburton | 17 | Warrington W | 5:00.24 |
| 4 | 27 | Adam Wright | 16 | Winsford | 4:54.11 |
| 5 | 26 | James Escolme | 16 | Carnforth | 4:45.36 |
| 6 | 24 | Max Harvey | 15 | Co Liverpool | 4:54.95 |
| 7 | 21 | William Last | 18 | Co Manch Aq | 4:51.79 |
| 8 | 18 | Cruz Chong | 15 | Stockport Mo | 5:00.44 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Nathan Lockett | 17 | Co Salford | : . |
| 2 | 31 | Lewis Turner | 16 | Winsford | : . |
| 3 | 33 | Samuel Grimes | 16 | Wigan BEST | : . |
| 4 | 35 | Reece Grady | 17 | Stockport Mo | : . |
| 5 | 34 | Davey Unwin | 16 | Stockport Mo | : . |
| 6 | 32 | Luke Critchlow | 17 | Stockport Mo | : . |
| 7 | 30 | Lachlan Beazley | 15 | Altrincham | : . |
| 8 | 28 | Finlay Pope | 15 | Stockport Mo | : . |