EVENT 209 Women 15 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Imogen Palmer | 16 | Flixton | DN:C . |
| 4 | 4 | Evie-Rose Sugden | 16 | Carlisle Aq | DN:F . |
| 5 | 3 | Emma Duxbury | 16 | Kendal | 6:12.24 |
| 6 | 1 | Lilian Hadingham | 16 | Winsford | 6:25.22 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Emily Sibbald | 16 | Workington | 6:14.74 |
| 2 | 8 | Sophie Wright | 15 | Wirral Metro | 6:07.31 |
| 3 | 10 | Abigail Cullen | 15 | Wigan BEST | 5:59.79 |
| 4 | 13 | Rosie Barker-Mayer | 15 | Halton | 6:06.04 |
| 5 | 12 | Grace Taylor | 16 | Bolton Metro | 5:44.02 |
| 6 | 9 | Lilli Tipping | 15 | Wigan BEST | 5:52.77 |
| 7 | 7 | Sienna Quane | 15 | Wigan BEST | 6:00.76 |
| 8 | 5 | Aimee-Mai Lister | 16 | Cockermouth | 6:01.44 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Ellena Walker | 16 | Stockport Mo | 6:02.95 |
| 2 | 18 | Olivia Donohue | 15 | Stockport Mo | 5:51.47 |
| 3 | 20 | Isla Holland | 15 | Wigan BEST | 5:42.67 |
| 4 | 24 | Clara Spence | 15 | Carnforth | 5:37.67 |
| 5 | 22 | Leah Rose | 15 | Penrith | 5:43.73 |
| 6 | 19 | Isabelle Taylor | 15 | Wirral Metro | 5:46.34 |
| 7 | 16 | Molly Brennan | 16 | Winsford | 5:49.83 |
| 8 | 14 | Emily French | 15 | Wirral Metro | DQ: . |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 26 | Olivia Ballard | 15 | Leyland Barr | 5:44.20 |
| 2 | 29 | Ruby Sheehan | 16 | Wigan BEST | 5:34.44 |
| 3 | 31 | Jasmine Bullough-Teal | 16 | Burnley BOBC | 5:38.11 |
| 4 | 34 | Isabel Lloyd | 15 | Wigan BEST | 5:34.74 |
| 5 | 33 | Eleanor Ma | 17 | Winsford | 5:50.03 |
| 6 | 30 | Megan Kenningley | 15 | Stockport Mo | 5:39.99 |
| 7 | 27 | Anna Fenwick | 15 | Satellite | 5:46.65 |
| 8 | 25 | Megan Doherty | 16 | Leyland Barr | 5:34.90 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 38 | Emily Wade | 15 | Leyland Barr | : . |
| 2 | 40 | Charlotte Mullarkey | 17 | Co Salford | : . |
| 3 | 43 | Kerry Hennie | 15 | Warrington W | : . |
| 4 | 45 | Lily Horton | 15 | Wirral Metro | : . |
| 5 | 44 | Payton Chesters | 15 | Warrington W | : . |
| 6 | 42 | Olivia O'Mahony | 15 | Cockermouth | : . |
| 7 | 39 | Sophie Grindley | 18 | Winsford | : . |
| 8 | 37 | Macy Barker | 16 | Warrington W | : . |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 47 | Olivia Sheehan | 18 | Wigan BEST | : . |
| 2 | 49 | Lauren Jones | 18 | Warrington W | : . |
| 3 | 52 | Amy Kenworthy | 17 | Winsford | : . |
| 4 | 54 | Rachel Hornby | 19 | Wigan BEST | : . |
| 5 | 53 | Katie Lee | 15 | Co Salford | : . |
| 6 | 51 | Ella Blocksidge | 17 | Co Salford | : . |
| 7 | 48 | Ellie Wilson | 16 | Cockermouth | : . |
| 8 | 46 | Eve Horton | 17 | Wigan BEST | : . |