EVENT 301 Female 09 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Jessica Barrett | 12 | Kettering | 6:18.82 |
| 3 | 4 | Emily-Rose Phillips | 13 | Co Coventry | 6:11.70 |
| 4 | 6 | Kimberley Hayes | 13 | Kettering | 6:00.70 |
| 5 | 5 | Lyra Tovey | 12 | Co Coventry | 6:02.00 |
| 6 | 3 | Sophie Pert | 12 | Norwich Swan | 6:14.78 |
| 7 | 1 | Sophie Scott | 12 | Co Coventry | 6:26.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Nellie Chadderton | 12 | West Norfolk | 5:59.78 |
| 2 | 10 | Elisa Giraud | 12 | Corby | 5:55.70 |
| 3 | 12 | Lucy Willatts | 13 | Grantham | 5:49.10 |
| 4 | 14 | Lauren Morley | 15 | Kettering | 5:36.11 |
| 5 | 13 | Mia Edwards | 14 | Norwich Swan | 5:46.26 |
| 6 | 11 | Valeria Soldatihhina | 11 | West Norfolk | 5:51.40 |
| 7 | 9 | Olivia Wicks | 12 | Norwich Swan | 5:56.19 |
| 8 | 7 | Briony Smith | 13 | Co Coventry | 6:00.49 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Phoebe Lawton | 14 | Co Coventry | 5:22.52 |
| 2 | 18 | Lucy Matthews | 16 | Co Coventry | 5:11.79 |
| 3 | 20 | Amelia Saunders | 16 | Norwich Swan | 5:10.50 |
| 4 | 22 | Ruby Muldowney | 16 | Co Bristol | 5:04.91 |
| 5 | 21 | Lilly Tappern | 17 | Corby | 5:07.57 |
| 6 | 19 | Grace Turner | 17 | Grantham | 5:11.60 |
| 7 | 17 | Caitlin O'Neill | 17 | Co Coventry | 5:17.74 |
| 8 | 15 | Phillippa Cutmore | 12 | Corby | 5:30.13 |