EVENT 201 Girl Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Zara JEFFERIES | 12 | Matlock | 7:10.84 |
| 3 | 4 | Mia RICHARDS | 13 | Bassetlaw SS | 6:45.00 |
| 4 | 3 | Stansie CROWE | 11 | Bassetlaw SS | 6:59.04 |
| 5 | 1 | Charlotte JENKINSON | 12 | Deepings | 8:43.73 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Abigail BETTS | 12 | Bassetlaw SS | 6:25.39 |
| 2 | 8 | Aimee ALY-WESTON | 12 | Bassetlaw SS | 6:08.25 |
| 3 | 10 | Gracie-May COLE | 14 | Co Lincoln P | 5:44.68 |
| 4 | 9 | Imogen HOWITT | 10 | Bassetlaw SS | 5:50.00 |
| 5 | 7 | Penelope BAXTER | 16 | Deepings | 6:13.79 |
| 6 | 5 | Iona WATSON | 13 | Bassetlaw SS | 6:28.32 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Katy WRIGHT | 13 | Derventio | 5:42.85 |
| 2 | 14 | Abbie TUNNICLIFFE | 14 | Derventio | 5:36.43 |
| 3 | 16 | Matilda HASE | 15 | Derventio | 5:30.62 |
| 4 | 15 | Lilli-Rose CARR | 13 | Co Lincoln P | 5:35.14 |
| 5 | 13 | Abigail ARMSTRONG | 15 | Sheffield C | 5:37.19 |
| 6 | 11 | Isla O'CONNOR | 12 | Bassetlaw SS | 5:44.52 |