EVENT 501 Womens 14 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Isabelle Lester | 14 | Matlock | 5:41.71 |
| 3 | 4 | Tegan Harrison | 14 | Boston | 5:36.07 |
| 4 | 6 | Megan Crompton | 14 | Derventio | 5:43.54 |
| 5 | 5 | Abbie Ruddle | 16 | Loughborough | 5:38.49 |
| 6 | 3 | Keeva Stopforth | 14 | Leic Peng | DN:C . |
| 7 | 1 | Trinity McCleary | 14 | Daventry | 5:44.93 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 8 | Chloe Hopkinson | 14 | Grantham | 5:35.47 |
| 1 | 10 | Imogen Lindsey | 16 | Melton M'bry | 5:45.83 |
| 2 | 12 | Molly Denton | 14 | Leic Sharks | 5:27.98 |
| 3 | 14 | Katie Rundle | 15 | Grantham | 5:32.96 |
| 4 | 16 | Mia Ellis | 14 | Grantham | DN:C . |
| 5 | 15 | Esther Grigore | 15 | Northampton | 5:24.30 |
| 6 | 13 | Mia Alexander | 17 | Braunstone | 5:37.96 |
| 7 | 11 | Molly Blazye | 16 | Hinckley | 5:40.13 |
| 8 | 9 | Emily Wheatley | 16 | Braunstone | 5:44.56 |
| 9 | 7 | Sophie Ballard | 15 | Grantham | 5:35.60 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 18 | Chloe Mercer | 16 | Northampton | 5:31.63 |
| 1 | 20 | Ellethea Hawley | 15 | Nova Cent'n | 5:40.09 |
| 2 | 22 | Emily Ford | 15 | Leic Peng | 5:35.53 |
| 3 | 24 | Ziyenne Shanker | 14 | Co Derby | DN:C . |
| 4 | 26 | Georgina Walker | 19 | Co Derby | 5:18.29 |
| 5 | 25 | Ella Beard | 16 | Bramcote | 5:34.94 |
| 6 | 23 | Leah Burgin-Rawson | 14 | Derventio | DN:C . |
| 7 | 21 | Sophie Wicks | 14 | Northampton | 5:31.01 |
| 8 | 19 | Kyra Macdonald | 17 | Arnold | 5:30.62 |
| 9 | 17 | Emily Hannaford | 16 | Radford | DN:C . |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 28 | Emily Morris | 14 | Nova Cent'n | 5:28.82 |
| 1 | 30 | Lucy Russell | 15 | Co Leicester | 5:32.93 |
| 2 | 32 | Bethan Thomas | 15 | Daventry | DN:C . |
| 3 | 34 | Megan Speirs | 15 | Lincoln Vulc | 5:21.61 |
| 4 | 36 | Bobbi Harper | 14 | Northampton | 5:24.18 |
| 5 | 35 | Sophie Baker | 15 | Chesterfield | 5:26.09 |
| 6 | 33 | Poppy Mead | 14 | Derventio | 5:22.67 |
| 7 | 31 | Poppy Hogg | 14 | Northampton | 5:30.23 |
| 8 | 29 | Lily Jackson-Oates | 14 | Nova Cent'n | 5:27.51 |
| 9 | 27 | Kate Durno | 17 | Northampton | 5:30.34 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 39 | Tia Keightley | 15 | Co Leicester | 5:15.01 |
| 1 | 43 | Taylor O'Rourke | 16 | Northampton | 5:09.20 |
| 2 | 47 | Carys O'Reilly | 16 | Co Leicester | 5:05.94 |
| 3 | 51 | Eleanor Hatton | 20 | Loughborough | 5:12.74 |
| 4 | 55 | Mollie Wright | 21 | Nova Cent'n | 5:01.22 |
| 5 | 53 | Ailsa McDonald | 18 | Northampton | 5:03.59 |
| 6 | 49 | Olivia Tatton | 19 | Northampton | 5:15.81 |
| 7 | 45 | Kate Morris | 14 | Nova Cent'n | 5:16.38 |
| 8 | 41 | Yasmine Sheffield | 15 | Leic Sharks | 5:09.17 |
| 9 | 37 | Jessica Owen | 14 | Co Leicester | 5:23.07 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 40 | Ellisha Cookson | 15 | South Lincs | 5:23.87 |
| 1 | 44 | Freya Stevens | 18 | Northampton | 5:15.67 |
| 2 | 48 | Emma Erskine | 15 | Nova Cent'n | 5:15.00 |
| 3 | 52 | Betsy Wizard | 16 | Northampton | 5:02.32 |
| 4 | 56 | Freya Colbert | 15 | Nova Cent'n | 4:52.11 |
| 5 | 54 | Candice Hall | 22 | Loughboro Un | 5:04.57 |
| 6 | 50 | Kieva Clegg | 18 | Boston | 5:23.46 |
| 7 | 46 | Isobel Hume | 17 | Northampton | 5:08.42 |
| 8 | 42 | Rebecca Flisher | 17 | Nova Cent'n | 5:08.56 |
| 9 | 38 | Mya Watt | 15 | Derventio | 5:24.06 |