EVENT 351 Female 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Poppy Bircher | 10 | Oswestry Ott | 6:34.01 |
| 2 | 5 | Demi Vincent | 11 | Newport | 6:17.25 |
| 3 | 8 | Lacie Lightfoot | 12 | Market Dray | 6:02.49 |
| 4 | 10 | Molly Franklin-Hughes | 12 | Newport | 5:56.15 |
| 5 | 9 | Ella Thrussell | 13 | Oswestry Ott | 5:58.66 |
| 6 | 6 | Phoebe Ellis | 11 | Wrekin SC | 6:08.88 |
| 7 | 4 | Kianna Brennan-Todd | 12 | Northgate | 6:18.26 |
| 8 | 1 | Lola Chadwick-Woolf | 10 | Wellington M | 7:15.93 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Rose Bayle | 11 | Wrekin SC | 5:55.06 |
| 2 | 14 | Heather Wylie | 13 | Wrekin SC | 5:48.07 |
| 3 | 16 | Sophie Bonner | 12 | Market Dray | 5:46.55 |
| 4 | 18 | Violet Edgerton | 13 | Newport | 5:45.36 |
| 5 | 17 | Ginny Farmer | 13 | Market Dray | 5:46.07 |
| 6 | 15 | Naomi Grant | 13 | Wrekin SC | 5:47.57 |
| 7 | 13 | Mair Thomas | 13 | Market Dray | 5:50.23 |
| 8 | 11 | Jessica Brown | 13 | Wrekin SC | 5:55.30 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Eliza Rozenberszki | 12 | Wrekin SC | 5:40.53 |
| 2 | 22 | Hannah Forbes | 13 | Oswestry Ott | 5:35.37 |
| 3 | 24 | Mollie Aspinall | 14 | Shrewsbury | 5:26.59 |
| 4 | 26 | Zoe Briggs | 14 | Market Dray | 5:17.48 |
| 5 | 25 | Ffion Williams | 15 | TelfordAqua | 5:21.54 |
| 6 | 23 | Ava Highfield | 14 | Market Dray | 5:27.58 |
| 7 | 21 | Jessica Martin | 12 | Market Dray | 5:36.38 |
| 8 | 19 | Elizabeth Hardy | 14 | Oswestry Ott | 5:42.14 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 28 | Martha Gibbard | 15 | Northgate | 5:11.51 |
| 2 | 30 | Daisy Berry | 15 | Northgate | 5:06.29 |
| 3 | 32 | Ella Hart | 16 | Wrekin SC | 5:04.30 |
| 4 | 34 | Charlotte Toogood | 18 | Newport | 5:00.15 |
| 5 | 33 | Emily Gurr | 14 | Northgate | 5:00.70 |
| 6 | 31 | Maisy Kirby | 13 | Wrekin SC | 5:05.63 |
| 7 | 29 | Eve Scales | 13 | EllesmereCSA | 5:11.37 |
| 8 | 27 | Ruby Clews | 16 | Market Dray | 5:12.87 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 36 | Paige Simpson | 15 | Market Dray | 4:57.25 |
| 2 | 38 | Esmay Jones | 13 | Wrekin SC | 4:52.70 |
| 3 | 40 | Lola Wheeler | 18 | Wrekin SC | 4:39.29 |
| 4 | 42 | Olivia Watts | 16 | EllesmereCSA | 4:32.09 |
| 5 | 41 | Beth Barrett | 17 | Wrekin SC | 4:36.50 |
| 6 | 39 | Maisie Beattie | 16 | EllesmereCSA | 4:46.10 |
| 7 | 37 | Payton Marski | 15 | EllesmereCSA | 4:53.68 |
| 8 | 35 | Scarlett Highfield | 16 | Market Dray | 4:57.67 |