EVENT 201 Girl 10 Yrs/Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Hoi-Mei Wilson | 13 | Leicester Ne | 6:54.81 |
| 2 | 4 | Isabelle Rose | 12 | Co Leicester | 6:08.00 |
| 3 | 6 | Esme White | 13 | Radford | 5:59.18 |
| 4 | 8 | Mia Hawkins | 10 | Co Coventry | 5:45.00 |
| 5 | 7 | Phoebe Lawton | 11 | Co Coventry | 5:45.00 |
| 6 | 5 | I Parsons-Loades | 10 | Nova Cent'n | 6:03.72 |
| 7 | 3 | Grace Hurst | 11 | Leicester Ne | 6:30.00 |
| 8 | 1 | Emilia Durrington | 11 | Co Leicester | 7:14.65 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Millie Hitchin | 12 | Co Leicester | 5:40.80 |
| 2 | 12 | Isabel Marston | 12 | Co Leicester | 5:35.97 |
| 3 | 14 | Maisie-Leigh Simpson | 11 | Co Leicester | 5:26.51 |
| 4 | 16 | Evie Bevan | 12 | Co Leicester | 5:22.47 |
| 5 | 15 | Kate Andrews | 13 | Co Leicester | 5:24.94 |
| 6 | 13 | Francesca Harrison | 12 | Co Leicester | 5:32.53 |
| 7 | 11 | Joanne Mitchell | 12 | Co Leicester | 5:37.70 |
| 8 | 9 | Lydia Cordle | 11 | Repton Swim | 5:40.90 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 18 | Niamh Dunbar | 13 | Co Leicester | 5:20.90 |
| 2 | 20 | Macy Simmonds | 15 | Co Leicester | 5:12.43 |
| 3 | 22 | Amreen Sanghera | 14 | Co Leicester | 5:02.94 |
| 4 | 24 | Alicia Ball | 15 | Co Leicester | 5:01.49 |
| 5 | 23 | Elizabeth Palfrey | 13 | Loughborough | 5:01.53 |
| 6 | 21 | Weronika Mikolajewska | 13 | Co Peterboro | 5:08.81 |
| 7 | 19 | Janie Finch | 11 | Co Leicester | 5:16.68 |
| 8 | 17 | Dorothy Plumpton | 12 | Co Leicester | 5:22.10 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 26 | Erin O'Neill | 14 | Radford | 4:54.00 |
| 2 | 28 | Alice Streeter | 15 | Co Leicester | 4:40.90 |
| 3 | 30 | Carys O'Reilly | 18 | Co Leicester | 4:38.39 |
| 4 | 32 | Lucy Hitchin | 16 | Repton Swim | 4:36.73 |
| 5 | 31 | Breanna Chamberlain | 14 | Mt Kelly | 4:37.28 |
| 6 | 29 | Lucy Russell | 17 | Co Leicester | 4:38.99 |
| 7 | 27 | Aimee O'Reilly | 14 | Co Leicester | 4:53.75 |
| 8 | 25 | Freya Wingfield-Dobbs | 15 | Co Leicester | 4:54.57 |