EVENT 501 Womens 14 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Aliesha Bower | 14 | Boston | 5:34.08 |
| 1 | 2 | Eleanor Aboutorab | 14 | Nova Cent'n | 5:33.50 |
| 2 | 3 | Ella Beard | 14 | Nova Cent'n | 5:31.87 |
| 3 | 4 | Nyah Anderton | 15 | Lincoln Vulc | 5:29.43 |
| 4 | 5 | Khushman Bhullar | 15 | Northampton | 5:28.11 |
| 5 | 6 | Abbey Turnbull | 14 | Co Derby | 5:26.38 |
| 6 | 7 | Jessica Collishaw | 14 | Nova Cent'n | 5:25.39 |
| 7 | 8 | Kyra Macdonald | 15 | Nova Cent'n | 5:24.80 |
| 8 | 9 | Kate McCallister | 14 | Co Leicester | 5:24.66 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 10 | Chloe Baldry | 17 | Boston | 5:23.94 |
| 1 | 11 | Jessica Gillatt | 20 | Retford | 5:23.20 |
| 2 | 12 | Chloe Mercer | 14 | Northampton | 5:23.10 |
| 3 | 13 | Yanna Mihaylova | 14 | Nova Cent'n | 5:22.36 |
| 4 | 14 | Naomi Dilley | 15 | Derventio | 5:22.05 |
| 5 | 15 | Mia Alexander | 15 | Braunstone | 5:21.65 |
| 6 | 16 | Chloe Stennett | 15 | Chesterfield | 5:21.53 |
| 7 | 17 | Isobel Foster | 15 | Co Derby | 5:21.27 |
| 8 | 18 | Charly Neilson | 18 | Nova Cent'n | 5:21.24 |
| 9 | 19 | Taylor O'Rourke | 14 | Northampton | 5:20.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 20 | Abbie Phillips | 15 | Grantham | 5:19.50 |
| 1 | 21 | Imogen Spouge | 14 | Nova Cent'n | 5:19.48 |
| 2 | 22 | Evie Dennison | 16 | Worksop | 5:18.81 |
| 3 | 23 | Olivia Humphrey | 14 | Nova Cent'n | 5:18.50 |
| 4 | 24 | Kate Durno | 15 | Northampton | 5:18.30 |
| 5 | 25 | Mia Strange | 18 | Braunstone | 5:17.53 |
| 6 | 26 | Annie Pearson | 15 | Nova Cent'n | 5:16.60 |
| 7 | 27 | Bethany Rae-McLean | 16 | Derventio | 5:15.65 |
| 8 | 28 | Hannah Shaw | 15 | Northampton | 5:15.12 |
| 9 | 29 | Natasha Utley | 15 | Retford | 5:14.97 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 30 | Gracie Clifton | 14 | Nova Cent'n | 5:14.70 |
| 1 | 31 | Lucy Gratton | 14 | Worksop | 5:10.99 |
| 2 | 32 | Charlotte Hall | 15 | Derventio | 5:10.40 |
| 3 | 33 | Madeleine Barnes | 15 | Grantham | 5:09.09 |
| 4 | 34 | Elissa Gratton | 17 | Lincoln Vulc | 5:08.44 |
| 5 | 35 | Freya Stevens | 16 | Northampton | 5:07.39 |
| 6 | 36 | Sophie Culpin | 20 | Grantham | 5:07.03 |
| 7 | 37 | Isobel Hume | 15 | Northampton | 5:06.39 |
| 8 | 38 | Carys O'Reilly | 14 | Co Leicester | 5:06.00 |
| 9 | 39 | Betsy Wizard | 14 | Northampton | 5:04.91 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 41 | Daisy Platts | 17 | Co Leicester | 5:00.74 |
| 1 | 43 | Ailsa McDonald | 16 | Northampton | 4:59.34 |
| 2 | 45 | Abigail Burr | 19 | Lincoln Vulc | 4:57.07 |
| 3 | 47 | Calypso Harvey | 20 | Loughboro Un | 4:55.63 |
| 4 | 49 | Mollie Wright | 19 | Nova Cent'n | 4:47.27 |
| 5 | 48 | Tara Haworth | 18 | Lincoln Vulc | 4:49.46 |
| 6 | 46 | Olivia Tatton | 17 | Northampton | 4:56.60 |
| 7 | 44 | Mia Slevin | 14 | Derventio | 4:58.50 |
| 8 | 42 | Isabel Spinley | 17 | Deepings | 5:00.59 |
| 9 | 40 | Kieva Clegg | 16 | Boston | 5:04.12 |