EVENT 301 Female 10 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Pippa Nicholson | 12 | Saltburn Mar | |
| 4 | 3 | Indi Chesworth | 10 | Billingham | 6:52.20 |
| 5 | 2 | Charlotte Colebrook | 12 | Eston | 7:30.01 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Poppy Ayre | 12 | Middlesboro | 6:36.30 |
| 3 | 7 | Rosie Bayliss | 13 | Guisborough | 6:09.84 |
| 4 | 9 | Mia Webb | 13 | RichmondDale | 6:04.99 |
| 5 | 8 | Jessica Chaytor | 12 | Middlesboro | 6:09.81 |
| 6 | 6 | Megan Tait | 18 | RichmondDale | 6:11.91 |
| 7 | 4 | Matilda Clarke | 11 | Middlesboro | 6:39.50 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Gracie-Mae Blake | 13 | Middlesboro | 5:56.88 |
| 2 | 13 | Olivia Green | 15 | Middlesboro | 5:55.64 |
| 3 | 15 | Charlotte Bashford | 16 | Middlesboro | 5:17.93 |
| 4 | 17 | Lydia Shipley | 13 | Middlesboro | 5:12.30 |
| 5 | 16 | Katie Pink | 17 | Middlesboro | 5:14.29 |
| 6 | 14 | Annabelle Harrison | 14 | Bo Barnsley | 5:30.30 |
| 7 | 12 | Sydney Dearlove | 15 | Middlesboro | 5:55.64 |
| 8 | 10 | Johanna Morton | 14 | Middlesboro | 6:04.74 |