EVENT 501 Girls 11/13 Yrs 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Daisy Robson-Jones | 12 | Co Leicester | 5:59.27 |
| 4 | 2 | Lottie Shaw | 12 | Northampton | 5:58.91 |
| 5 | 3 | Harmony Torrington | 12 | Long Eaton | 5:57.56 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 4 | Lottie Warsop | 12 | Nova Cent'n | 5:57.08 |
| 3 | 5 | Ellisha Cookson | 12 | South Lincs | 5:56.47 |
| 4 | 6 | Lilly Cherry | 12 | Nova Cent'n | 5:55.70 |
| 5 | 7 | Hannah Lines | 12 | Co Leicester | 5:55.50 |
| 6 | 8 | Lauren Shipley | 12 | Nova Cent'n | 5:53.15 |
| 7 | 9 | Becky Whittaker | 11 | Nova Cent'n | 5:52.41 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Rebecca Hadley | 12 | Co Leicester | 5:52.30 |
| 2 | 11 | Katie Rundle | 12 | Deepings | 5:50.91 |
| 3 | 12 | Merewyn Jones | 12 | Nova Cent'n | 5:49.90 |
| 4 | 13 | Isobelle Moore | 12 | Chesterfield | 5:49.80 |
| 5 | 14 | Sophie Baker | 12 | Chesterfield | 5:49.50 |
| 6 | 15 | Ellie Smeeton | 13 | Nova Cent'n | 5:49.24 |
| 7 | 16 | Bobbi Harper | 11 | Northampton | 5:48.25 |
| 8 | 17 | Ellethea Hawley | 12 | Nova Cent'n | 5:46.41 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 18 | Rebecca Lowe | 12 | Northampton | 5:45.91 |
| 2 | 19 | Lara Salt | 13 | Chesterfield | 5:45.35 |
| 3 | 20 | Livia Kingsland | 11 | Nova Cent'n | 5:45.19 |
| 4 | 21 | Amber Downham | 11 | Chesterfield | 5:44.98 |
| 5 | 22 | Lucy Conroy | 12 | Nova Cent'n | 5:44.49 |
| 6 | 23 | Ellie Blakey | 12 | Nova Cent'n | 5:44.19 |
| 7 | 24 | Poppy Hogg | 11 | Northampton | 5:44.18 |
| 8 | 25 | Yanna Mihaylova | 13 | Nova Cent'n | 5:44.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 26 | Mya Watt | 12 | Derventio | 5:43.80 |
| 2 | 27 | Abbie Ruddle | 13 | Co Leicester | 5:43.64 |
| 3 | 28 | Emily Wheatley | 13 | Co Leicester | 5:43.42 |
| 4 | 29 | Ella Poole | 13 | Northampton | 5:43.30 |
| 5 | 30 | Jessica Collishaw | 13 | Nova Cent'n | 5:43.30 |
| 6 | 31 | Chloe Mercer | 13 | Northampton | 5:42.60 |
| 7 | 32 | Lucy Russell | 12 | Co Leicester | 5:41.28 |
| 8 | 33 | Eleanor Aboutorab | 13 | Nova Cent'n | 5:40.20 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 34 | Ianthe Brittain | 13 | Co Leicester | 5:40.12 |
| 2 | 35 | Imogen Spouge | 13 | Nova Cent'n | 5:39.60 |
| 3 | 36 | Summer Simpson | 12 | Nova Cent'n | 5:39.50 |
| 4 | 37 | Kate McCallister | 13 | Co Leicester | 5:39.10 |
| 5 | 38 | Yasmine Sheffield | 12 | Leic Sharks | 5:38.60 |
| 6 | 39 | Natalie Layton | 13 | Co Derby | 5:37.67 |
| 7 | 40 | Lara Hawkes | 13 | Grantham | 5:37.37 |
| 8 | 41 | Emma Erskine | 12 | Nova Cent'n | 5:35.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 43 | Isabella Munro | 13 | Lincoln Vulc | 5:28.19 |
| 2 | 45 | Merel Hijink | 13 | Daventry | 5:19.36 |
| 3 | 47 | Carys O'Reilly | 13 | Co Leicester | 5:17.80 |
| 4 | 49 | Mia Slevin | 13 | Derventio | 5:08.20 |
| 5 | 48 | Freya Colbert | 12 | Grantham | 5:11.50 |
| 6 | 46 | Betsy Wizard | 13 | Northampton | 5:18.90 |
| 7 | 44 | Taylor O'Rourke | 13 | Northampton | 5:28.06 |
| 8 | 42 | Olivia Humphrey | 13 | Nova Cent'n | 5:32.90 |