EVENT 501 Girl 11/13 Yrs 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Sophie Cooksey | 12 | Louth | 6:16.50 |
| 2 | 4 | Daisy Tatlow-Turner | 12 | Chesterfield | 6:01.70 |
| 3 | 6 | Chiara Reedha | 13 | Corby | 5:57.32 |
| 4 | 8 | Evie Matthews | 13 | Northampton | 5:50.39 |
| 5 | 7 | Francesca Harrison | 13 | Co Leicester | 5:57.10 |
| 6 | 5 | Esmee Slinn | 13 | Co Leicester | 5:58.60 |
| 7 | 3 | Phebe Adams | 13 | Northampton | 6:05.31 |
| 8 | 1 | Eliza Mason | 11 | Leic Sharks | 6:16.50 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Ava Alexander | 13 | Leic Sharks | 5:44.60 |
| 2 | 12 | Charlotte Callaghan-We | 13 | Nova Cent'n | 5:38.60 |
| 3 | 14 | Janie Finch | 12 | Co Leicester | 5:34.00 |
| 4 | 16 | Lydia Cordle | 12 | Repton | 5:30.88 |
| 5 | 15 | Jessica Lines | 13 | Leic Sharks | 5:31.63 |
| 6 | 13 | Jessica Oxley | 13 | Co Leicester | 5:38.39 |
| 7 | 11 | Lilli-Rose Carr | 13 | Co Lincoln P | 5:40.30 |
| 8 | 9 | Belle Bacon | 12 | Nova Cent'n | 5:48.10 |