EVENT 401 Female 11 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Gwyneth Ng | 12 | Warrington W | 7:04.80 |
| 4 | 3 | Ruby Karwa | 11 | Warrington W | 6:58.50 |
| 5 | 2 | Robyn Hingston | 11 | Co Manch Aq | 7:00.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Luna Maxwell | 11 | Warrington W | 6:49.80 |
| 2 | 7 | Ffion Sinnott | 11 | Co Liverpool | 6:35.55 |
| 3 | 9 | Isabella Paredes | 11 | Co Manch Aq | 6:35.00 |
| 4 | 12 | Sienna Jones | 11 | Co Manch Aq | 6:30.50 |
| 5 | 11 | Esmie Wiles | 13 | Warrington W | 6:30.60 |
| 6 | 8 | Sasha McNabb | 11 | Co Liverpool | 6:35.20 |
| 7 | 6 | Isabel Redburn | 14 | Co Manch Aq | 6:40.00 |
| 8 | 4 | Maisie Mullock | 12 | Bolton Metro | 6:51.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Tabatha Hems Gillson | 11 | Repton | 6:23.40 |
| 2 | 17 | Darcy Heath | 14 | Warrington W | 6:13.10 |
| 3 | 19 | Sabriye Orucu | 13 | Co Liverpool | 6:09.90 |
| 4 | 21 | Lottie Read | 12 | Co Liverpool | 6:06.91 |
| 5 | 20 | Ayla Carry | 12 | Co Leeds | 6:08.30 |
| 6 | 18 | Chloe Burton | 11 | Royal Wolv | 6:11.98 |
| 7 | 16 | Lottie Parkes | 11 | Royal Wolv | 6:16.99 |
| 8 | 13 | Emily Maskew | 14 | Co Manch Aq | 6:30.01 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Scarlett Mayne | 13 | Workington | 6:04.10 |
| 2 | 26 | Evie Moran | 13 | Co Leeds | 6:01.44 |
| 3 | 28 | Charlotte Hughes | 14 | Wigan BEST | 5:53.40 |
| 4 | 30 | Amelia Matson | 14 | Co Leeds | 5:52.10 |
| 5 | 29 | Isabelle Park | 12 | Co Leeds | 5:52.76 |
| 6 | 27 | Niomi Gorvett | 13 | Bolton Metro | 5:56.60 |
| 7 | 24 | Evangeline Grover | 12 | Royal Wolv | 6:03.34 |
| 8 | 22 | Erin Chapman-Hare | 14 | Royal Wolv | 6:05.61 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 32 | Poppy Read | 12 | Co Liverpool | 5:48.10 |
| 2 | 34 | Emilia Armstrong | 13 | Wigan BEST | 5:44.08 |
| 3 | 36 | Niamh Khan | 17 | Co Manch Aq | 5:41.80 |
| 4 | 40 | Ruby Whiteside | 14 | Aquabears | 5:35.13 |
| 5 | 38 | Alivia Cutter | 13 | Wigan BEST | 5:37.41 |
| 6 | 35 | Scarlett Kennedy | 13 | Repton | 5:43.70 |
| 7 | 33 | Alana Rankin | 12 | Co Leeds | 5:46.76 |
| 8 | 31 | Matilda Forrest | 15 | Bolton Metro | 5:50.09 |