EVENT 101 Girls 12 Yrs/Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Ella COLEMAN | 12 | Co Leeds | 21:17.23 |
| 3 | 3 | Sophie ROBSON | 13 | Tynemouth | 20:43.02 |
| 4 | 5 | Sophie WRIGHT | 15 | Wirral Metro | 20:23.40 |
| 5 | 4 | Mia TRAVIS-JONES | 13 | Co Leeds | 20:31.65 |
| 6 | 2 | Poppy NUTTMAN | 13 | Bo Kirklees | 21:09.56 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 7 | Aira WILKINSON | 14 | Co Leeds | 20:10.06 |
| 1 | 9 | Elizabeth ADAM | 13 | Leyland Barr | 19:49.76 |
| 2 | 11 | Isabelle HALL | 12 | Co Leeds | 19:43.11 |
| 3 | 13 | Ella-Grace LAWSON | 14 | Warrington W | 19:31.60 |
| 4 | 15 | Charlotte PAYTON | 18 | Tynemouth | 19:22.08 |
| 5 | 14 | Pollyanna KERSHAW | 13 | Blackpool Aq | 19:28.38 |
| 6 | 12 | Hannah BRUCE | 14 | South Lincs | 19:37.00 |
| 7 | 10 | Hazel BLAIN | 14 | Co Leeds | 19:46.90 |
| 8 | 8 | Molly NORTON | 13 | Co Leeds | 19:55.33 |
| 9 | 6 | Lexie HAMILTON | 14 | South Lincs | 20:19.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 17 | Lillie HAMILTON | 15 | South Lincs | 19:15.70 |
| 1 | 19 | Olivia ANSTEY | 15 | Louth | 19:11.50 |
| 2 | 21 | V PINERA LEVITA | 14 | Co Leeds | 19:03.15 |
| 3 | 23 | Annalise MENDOZA | 15 | KingstonHull | 18:55.70 |
| 4 | 25 | Mei YUASA | 13 | Co Leeds | 18:51.80 |
| 5 | 24 | Isobel HITCHMOUGH | 14 | Warrington W | 18:51.90 |
| 6 | 22 | Freya CARNELL | 16 | Satellite | 18:58.40 |
| 7 | 20 | Emily FRENCH | 15 | Wirral Metro | 19:04.40 |
| 8 | 18 | Alex NEWTON | 15 | Co Leeds | 19:11.97 |
| 9 | 16 | Molly-Rosanna YOUNG | 15 | Tynemouth | 19:21.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 27 | Macy BARKER | 16 | Warrington W | 18:45.90 |
| 1 | 29 | Isabel HANDLEY | 14 | Co Leeds | 18:40.01 |
| 2 | 31 | Megan CHU | 16 | KingstonHull | 18:34.20 |
| 3 | 33 | Olivia WATTS | 14 | Warrington W | 18:31.50 |
| 4 | 35 | Amelia GERRARD | 14 | Warrington W | 18:30.00 |
| 5 | 34 | Sophie MARTIN | 16 | Chesterfield | 18:31.00 |
| 6 | 32 | Emily Afiya RICKINSON | 17 | KingstonHull | 18:31.52 |
| 7 | 30 | Francesca HALLAM-STOTT | 16 | Grantham | 18:34.30 |
| 8 | 28 | Mia BOALER | 14 | Nuneaton | 18:43.50 |
| 9 | 26 | Eliza RADCLYFFE | 17 | Birkenhead | 18:51.15 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 37 | Gia HOTHERSALL | 17 | Wirral Metro | 18:28.20 |
| 1 | 39 | Lauren LILLEY | 15 | Co Leeds | 18:19.09 |
| 2 | 41 | Payton CHESTERS | 15 | Warrington W | 18:13.35 |
| 3 | 43 | Evangeline STACEY | 16 | Co Leeds | 18:04.56 |
| 4 | 45 | Ella BLOCKSIDGE | 17 | Co Salford | 17:36.13 |
| 5 | 44 | Millie THRELFALL | 14 | Co Leeds | 17:52.25 |
| 6 | 42 | Matilda POTTER | 15 | Co Leeds | 18:11.37 |
| 7 | 40 | Rhianna FOSTER | 17 | KingstonHull | 18:15.07 |
| 8 | 38 | Evie HANDS | 16 | Nuneaton | 18:20.60 |
| 9 | 36 | Sedona REED | 16 | Co Leeds | 18:28.91 |