EVENT 101 Girls 12 Yrs/Over 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Evelyn French | 12 | Long Eaton | 13:23.42 |
| 4 | 3 | Elspeth Dumphy-Wraith | 12 | Matlock | 12:01.95 |
| 5 | 2 | Poppy Harvey | 14 | Long Eaton | 13:34.30 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Isla Johnson | 12 | Ripley | 12:08.54 |
| 2 | 7 | Annabel Bagshaw | 14 | Buxton | 11:49.37 |
| 3 | 9 | Martha Harris-Wood | 17 | Buxton | 11:12.35 |
| 4 | 11 | Saffron Sands | 15 | Ripley | 11:10.77 |
| 5 | 10 | Emily McHugh | 15 | Co Derby | 11:37.87 |
| 6 | 8 | Sophia Lewis | 16 | Co Derby | 11:27.49 |
| 7 | 6 | Ella Ratliff | 14 | Co Derby | 12:23.02 |
| 8 | 4 | Amelie Ratliff | 13 | Co Derby | 11:25.90 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 13 | Annabelle Ebanks | 18 | Co Derby | 11:49.72 |
| 1 | 15 | Molly Hamblen | 14 | Etwall | 11:24.09 |
| 2 | 17 | Daisy Tatlow-Turner | 13 | Chesterfield | 10:41.43 |
| 3 | 19 | Maddie Wilson | 13 | Long Eaton | 10:36.38 |
| 4 | 21 | Mia Wilson | 15 | Long Eaton | 10:46.95 |
| 5 | 20 | Rosie Stone | 16 | Ripley | 10:46.51 |
| 6 | 18 | Jessica Parry | 15 | Long Eaton | 11:02.53 |
| 7 | 16 | Niamh Dobbs | 14 | Chesterfield | 10:53.31 |
| 8 | 14 | Jessica Wass | 15 | Co Derby | 11:28.32 |
| 9 | 12 | Hannah Smith | 16 | Long Eaton | DN:C . |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 23 | Elodie Heron | 14 | Co Derby | 10:43.89 |
| 1 | 25 | Kessie Webster | 13 | BelperMarlin | 10:23.59 |
| 2 | 27 | Kate Pearson | 17 | Chesterfield | 10:21.91 |
| 3 | 29 | Abbie Tunnicliffe | 15 | Long Eaton | 10:08.91 |
| 4 | 31 | Jasmine Vaartjes | 14 | Repton | 9:58.35 |
| 5 | 30 | Olivia Marshall | 16 | BelperMarlin | 10:26.20 |
| 6 | 28 | Sophie Millidge | 17 | Swadlincote | 10:20.78 |
| 7 | 26 | Matilda Hase | 16 | Long Eaton | 10:00.74 |
| 8 | 24 | Laura Temple | 14 | Repton | 10:34.53 |
| 9 | 22 | Livi Vickers | 13 | Long Eaton | 10:37.80 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 33 | Poppy Mead | 18 | DerbyPhoenix | 9:41.29 |
| 1 | 35 | Henrietta D'Ammassa | 18 | Repton | 9:13.04 |
| 2 | 37 | Marija Romanovskaja | 17 | Repton | DN:C . |
| 3 | 39 | Hannah Hodgkiss | 17 | Repton | 9:21.19 |
| 4 | 41 | Harriet Oxley | 18 | Repton | 9:12.33 |
| 5 | 40 | Sophie Busby | 17 | DerbyPhoenix | 9:23.59 |
| 6 | 38 | Eleanor Broughton | 17 | Repton | 9:34.36 |
| 7 | 36 | Lucy Cadden | 19 | Co Derby | 9:30.91 |
| 8 | 34 | Adea Sollaku | 14 | Co Derby | 9:28.89 |
| 9 | 32 | Sophie Martin | 16 | Chesterfield | 10:06.44 |