EVENT 401 Girls 10 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Amaja Waters | 11 | Harrogate | 6:55.40 |
| 3 | 4 | Emma Owen | 11 | Alnwick Dol | 6:50.00 |
| 4 | 6 | Elyza Hylands | 13 | Harrogate | 6:35.20 |
| 5 | 5 | Annabel Lupton | 13 | Billingham | 6:38.51 |
| 6 | 3 | Erin Stephenson-Mangan | 16 | Eston | 6:50.00 |
| 7 | 1 | Isabelle Brydon | 11 | Eston | 6:59.99 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Mia Gall | 12 | Harrogate | 6:14.34 |
| 2 | 11 | Maisie Mack | 16 | Billingham | 5:46.30 |
| 3 | 13 | Ella Proud | 15 | Middlesboro | 5:32.30 |
| 4 | 16 | Ellie Baister | 18 | Middlesboro | 5:23.26 |
| 5 | 14 | Isobel Daley | 15 | Middlesboro | 5:30.00 |
| 6 | 12 | Hannah Takacs | 16 | Stokesley | 5:33.12 |
| 7 | 10 | Jaime Berry | 12 | Harrogate | 6:08.00 |
| 8 | 8 | Natasha Rice | 15 | Middlesboro | 6:25.38 |