EVENT 201 Female 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Cali Watson | 10 | Walsall | 7:40.56 |
| 2 | 2 | Mia Walls | 10 | Walsall | 7:15.89 |
| 3 | 3 | Lily Blower | 10 | Walsall | 7:10.54 |
| 4 | 4 | Laiannie Lightfoot | 15 | Market Dray | 7:02.86 |
| 5 | 5 | Bethan Roberts | 13 | Chase | 6:45.00 |
| 6 | 6 | Charlotte Davis | 12 | Wolv'hampton | 6:39.41 |
| 7 | 7 | Ginny Farmer | 13 | Market Dray | 6:35.59 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Lottie Parkes | 10 | Royal Wolv | 6:35.00 |
| 2 | 9 | Freya Jones | 12 | Wolv'hampton | 6:28.91 |
| 3 | 10 | Eliza Rozenberszki | 12 | Wrekin SC | 6:28.88 |
| 4 | 11 | Lilliella Page | 12 | Royal Wolv | 6:26.34 |
| 5 | 12 | Sophie Bonner | 12 | Market Dray | 6:25.00 |
| 6 | 13 | Rose Bayle | 11 | Wrekin SC | 6:24.75 |
| 7 | 14 | Lacie Lightfoot | 12 | Market Dray | 6:23.15 |
| 8 | 15 | Jessica Martin | 12 | Market Dray | 6:20.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Erin Chapman-Hare | 13 | Royal Wolv | 6:17.00 |
| 2 | 17 | Naomi Grant | 12 | Wrekin SC | 6:16.23 |
| 3 | 18 | Olivia Shaw | 13 | Dove Valley | 6:14.32 |
| 4 | 19 | Erin Plant | 13 | Royal Wolv | 6:10.00 |
| 5 | 20 | Ashleigh Neighbour | 15 | Cosacss | 6:08.60 |
| 6 | 21 | Emmeline Redford | 14 | Wolv'hampton | 6:05.00 |
| 7 | 24 | Molly Rooker | 15 | Walsall | 5:51.55 |
| 8 | 25 | Maisy Kirby | 13 | Wrekin SC | 5:47.34 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Katlyn Richardson | 15 | Walsall | 5:41.65 |
| 2 | 29 | Freya Murton | 14 | Wolv'hampton | 5:38.40 |
| 3 | 31 | Paige Simpson | 14 | Market Dray | 5:29.96 |
| 4 | 33 | Lucy Noble | 16 | Wolv'hampton | 5:18.51 |
| 5 | 32 | Esmay Jones | 13 | Wrekin SC | 5:27.70 |
| 6 | 30 | Beth Barrett | 16 | Wrekin SC | 5:38.30 |
| 7 | 28 | Maisie Beattie | 16 | Wrekin SC | 5:40.50 |
| 8 | 26 | Charlotte Osborne | 15 | Wolv'hampton | 5:43.17 |