EVENT 101 Female 12 Yrs/Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Livia STACEY | 12 | Co Leeds | 21:18.09 |
| 4 | 3 | Evie-Rose TOPPING | 13 | Co Leeds | 20:52.68 |
| 5 | 2 | Sophie FOSTER | 13 | Louth | 21:08.90 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 4 | Freya COOPER | 13 | Donc Dartes | 20:40.13 |
| 1 | 6 | Kaelyn COWE | 15 | Corby | 20:29.14 |
| 2 | 8 | Evie WEBSTER | 12 | Trafford Met | 20:06.20 |
| 3 | 10 | Lexie HAMILTON | 15 | South Lincs | 20:04.60 |
| 4 | 12 | M AZANA-BALL | 13 | Co Leeds | 19:35.86 |
| 5 | 11 | Ava HALLIWELL | 13 | Wirral Metro | 19:38.50 |
| 6 | 9 | Emily ENGLAND-HALL | 12 | Co Leeds | 20:04.98 |
| 7 | 7 | Ellie ROWSON | 16 | York City | 20:14.50 |
| 8 | 5 | Millie MCKEOWN | 15 | Wirral Metro | 20:35.90 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 14 | Jessica EGGITT | 15 | Donc Dartes | 19:20.74 |
| 1 | 16 | Elizabeth ADAM | 14 | Leyland Barr | 19:11.90 |
| 2 | 18 | Harper ASPINALL | 12 | Wirral Metro | 19:10.60 |
| 3 | 20 | Vivien WILKINSON | 13 | Wirral Metro | 18:57.40 |
| 4 | 22 | Jessica HUBERY | 14 | Donc Dartes | 18:49.23 |
| 5 | 21 | Pollyanna KERSHAW | 14 | Blackpool Aq | 18:49.59 |
| 6 | 19 | Elkie FOSTER | 13 | Co Leeds | 19:09.31 |
| 7 | 17 | Isla YATES | 17 | York City | 19:10.70 |
| 8 | 15 | Holly HARRISON | 14 | Co Leeds | 19:17.57 |
| 9 | 13 | Mia TRAVIS-JONES | 14 | Co Leeds | 19:21.85 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 24 | Annalise MENDOZA | 16 | KingstonHull | 18:48.63 |
| 1 | 26 | Evie MCWATT | 16 | KingstonHull | 18:46.10 |
| 2 | 28 | Ella Mae PRIOR | 16 | Corby | 18:40.30 |
| 3 | 30 | Emily FRENCH | 16 | Wirral Metro | 18:36.70 |
| 4 | 32 | Isabelle HALL | 13 | Co Leeds | 18:33.94 |
| 5 | 31 | Lillie HAMILTON | 16 | South Lincs | 18:34.90 |
| 6 | 29 | Francesca HALLAM-STOTT | 17 | Grantham | 18:38.44 |
| 7 | 27 | Lauren BERRY | 14 | Wirral Metro | 18:42.30 |
| 8 | 25 | Hermione COAKLEY-HINES | 14 | Wirral Metro | 18:47.30 |
| 9 | 23 | Grace TAYLOR | 17 | Bolton Metro | 18:49.04 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 34 | Megan CHU | 17 | KingstonHull | 18:27.05 |
| 1 | 36 | Mei YUASA | 14 | Co Leeds | 18:15.89 |
| 2 | 38 | Isobel HITCHMOUGH | 15 | Co Liverpool | 18:10.82 |
| 3 | 40 | Matilda POTTER | 16 | Co Leeds | 17:53.46 |
| 4 | 42 | Sedona REED | 17 | Co Leeds | 17:32.61 |
| 5 | 41 | Lauren LILLEY | 16 | Co Leeds | 17:52.88 |
| 6 | 39 | Molly NORTON | 14 | Co Leeds | 18:08.81 |
| 7 | 37 | Isabel HANDLEY | 15 | Co Leeds | 18:15.14 |
| 8 | 35 | Amelia GERRARD | 15 | Co Liverpool | 18:24.50 |
| 9 | 33 | Hannah FINNEY | 15 | Cosacss | 18:33.30 |