EVENT 101 Female 12 Yrs/Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Amelia MATSON | 13 | Co Leeds | 20:55.16 |
| 2 | 4 | Amy TAYLOR | 14 | Grantham | 20:37.80 |
| 3 | 6 | Amelie STEVENSON | 14 | Co Peterboro | 20:05.50 |
| 4 | 8 | Ellie ROWSON | 17 | York City | 19:44.31 |
| 5 | 7 | Evie WEBSTER | 13 | Trafford Met | 20:05.21 |
| 6 | 5 | Olivia THORPE | 14 | Rotherham Mo | 20:08.80 |
| 7 | 3 | Mollie OFFORD | 14 | Altrincham | 20:42.80 |
| 8 | 1 | Kitty SUMNER | 13 | Sheffield C | 20:58.65 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 10 | Freya COOPER | 14 | Donc Dartes | 19:43.17 |
| 1 | 12 | Imogen JONES | 16 | Bo Kirklees | 19:38.30 |
| 2 | 14 | Amelie STEPHENS | 13 | Co Birm'ham | 19:23.70 |
| 3 | 16 | Megan BARNICOAT | 14 | Co Peterboro | 19:10.84 |
| 4 | 18 | Pollyanna KERSHAW | 15 | Blackpool Aq | 19:04.55 |
| 5 | 17 | Isla YATES | 18 | York City | 19:07.05 |
| 6 | 15 | Paige BAGSHAW | 14 | Nova Cent'n | 19:14.40 |
| 7 | 13 | Melina-Grace COMERFORD | 15 | Co Manch Aq | 19:28.70 |
| 8 | 11 | Lucy WILLATTS | 14 | Grantham | 19:42.00 |
| 9 | 9 | Molly BRADLEY | 14 | Nova Cent'n | 19:43.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 20 | Ava HANDS | 14 | Nuneaton | 18:57.00 |
| 1 | 22 | Tilly STEVENS | 15 | Co Liverpool | 18:53.41 |
| 2 | 24 | Rosie BROGDEN | 13 | Co Leeds | 18:44.39 |
| 3 | 26 | Elkie FOSTER | 14 | Co Leeds | 18:41.10 |
| 4 | 28 | Emily INNS | 20 | Altrincham | 18:39.10 |
| 5 | 27 | Ava HALLIWELL | 14 | Wirral Metro | 18:39.94 |
| 6 | 25 | Amaja WATERS | 14 | Harrogate | 18:42.39 |
| 7 | 23 | Daisy TATLOW-TURNER | 15 | Chesterfield | 18:50.60 |
| 8 | 21 | Abigail JAMES | 16 | York City | 18:56.44 |
| 9 | 19 | Scarlett Rose BARR | 15 | Co Liverpool | 19:04.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 30 | Emily ENGLAND-HALL | 13 | Co Leeds | 18:35.82 |
| 1 | 32 | Jennifer WALKER | 17 | Bassetlaw SS | 18:31.56 |
| 2 | 34 | Hermione COAKLEY-HINES | 15 | Wirral Metro | 18:30.00 |
| 3 | 36 | Viyana SEIFI | 14 | Co Salford | 18:24.90 |
| 4 | 38 | Letian WU | 16 | Trafford Met | 18:18.90 |
| 5 | 37 | Esme BEEVERS | 14 | Rotherham Mo | 18:19.39 |
| 6 | 35 | Erin MCCURRIE | 16 | Co Liverpool | 18:26.40 |
| 7 | 33 | Lily CATTLIN | 15 | Rotherham Mo | 18:30.10 |
| 8 | 31 | Lois WARD | 14 | Nuneaton | 18:34.70 |
| 9 | 29 | Sofia CASAP | 15 | KingstonHull | 18:37.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 40 | Grace TURNER | 18 | Grantham | 18:18.20 |
| 1 | 42 | Emily FRENCH | 17 | Wirral Metro | 18:12.80 |
| 2 | 44 | Cazia MARTIN | 16 | Co Sheffield | 18:07.50 |
| 3 | 46 | Annabel IRVINE | 15 | Co Liverpool | 18:00.60 |
| 4 | 48 | Molly NORTON | 15 | Co Leeds | 17:57.17 |
| 5 | 47 | Macy BARKER | 18 | Co Liverpool | 17:58.40 |
| 6 | 45 | Mei YUASA | 15 | Co Leeds | 18:06.45 |
| 7 | 43 | Amelia GERRARD | 16 | Co Liverpool | 18:09.60 |
| 8 | 41 | Isobel HITCHMOUGH | 16 | Co Liverpool | 18:15.97 |
| 9 | 39 | Francesca HALLAM-STOTT | 18 | Grantham | 18:18.50 |