EVENT 501 Female 12 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Seren JOHNSON | 13 | Wirral Metro | 6:02.80 |
| 3 | 4 | Scarlett Rose BARR | 16 | Co Liverpool | 5:46.12 |
| 4 | 6 | Eva SMITH | 14 | Co Liverpool | 5:37.79 |
| 5 | 5 | Kianna HUI | 14 | Co Liverpool | 5:40.50 |
| 6 | 3 | Nalika MORTIMER | 13 | Co Liverpool | 5:52.50 |
| 7 | 1 | Lottie READ | 13 | Co Liverpool | 6:07.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Daisy D'ARCY | 15 | Co Liverpool | 5:32.91 |
| 2 | 10 | Abigail JACKSON | 23 | Sandwell | 5:28.58 |
| 3 | 12 | Scarlett BIRCH | 15 | Newcastle St | 5:26.20 |
| 4 | 14 | Matilda BRISTOW | 13 | Co Liverpool | 5:25.51 |
| 5 | 13 | Natalie KOLEVA | 15 | Warrington W | 5:25.80 |
| 6 | 11 | Emily LINES | 17 | Winsford | 5:26.30 |
| 7 | 9 | Lottie ABBOTT BECK | 15 | Wirral Metro | 5:32.50 |
| 8 | 7 | Molly BRENNAN | 19 | Winsford | 5:34.05 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Maya KARWA | 14 | Warrington W | 5:23.20 |
| 2 | 18 | Bethan JAMES | 16 | Wirral Metro | 5:19.60 |
| 3 | 20 | S HUTCHINSON-THOMPSON | 18 | Bolton | 5:18.80 |
| 4 | 22 | Abbie ROSCOE | 17 | Wirral Metro | 4:47.07 |
| 5 | 21 | Mia ROBINSON | 15 | Co Liverpool | 5:17.60 |
| 6 | 19 | Martha SUMNALL | 16 | Co Liverpool | 5:18.85 |
| 7 | 17 | Sophie GRINDLEY | 21 | Winsford | 5:22.70 |
| 8 | 15 | Camilla HOLLAND | 15 | Wigan BEST | 5:24.70 |