EVENT 103 Girls Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Sabrina TRAN | 9 | Scott Hall 8 | 1:54.21 |
| 1 | 3 | Elspeth KNOWLES | 8 | Airborough 8 | 1:30.00 |
| 2 | 5 | Kate BLACKLEDGE | 9 | Scott Hall 8 | 1:24.41 |
| 3 | 7 | Erin GRANGE | 10 | Scott Hall 8 | 1:20.32 |
| 4 | 9 | Hollie WILSON | 10 | Scott Hall 8 | 1:16.41 |
| 5 | 8 | Anna JAMES | 8 | Co Leeds | 1:16.95 |
| 6 | 6 | Abigail FORD COSTELLO | 10 | Kirkstall 8 | 1:24.00 |
| 7 | 4 | Christa SHACKLETON | 10 | Scott Hall 8 | 1:26.00 |
| 8 | 2 | Kayla CHIMHANDA | 10 | Morley 8 | 1:31.36 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 11 | Erin NEWTON | 9 | Co Leeds | 1:16.20 |
| 1 | 13 | Samikasha IYER | 11 | Scott Hall 8 | 1:15.55 |
| 2 | 15 | Lauren HAMMOND | 9 | Co Leeds | 1:15.20 |
| 3 | 17 | Anna TAYLOR | 8 | Co Leeds | 1:15.00 |
| 4 | 19 | Evie WOODS | 9 | Kirkstall 8 | 1:14.00 |
| 5 | 18 | Yingze Mae WANG | 8 | Co Leeds | 1:15.00 |
| 6 | 16 | Charlotte PEDLEY | 10 | Co Leeds | 1:15.18 |
| 7 | 14 | Chloe CHEESEBROUGH | 11 | John Smeaton | 1:15.53 |
| 8 | 12 | Sophie LANCASHIRE | 10 | Kirkstall 8 | 1:16.00 |
| 9 | 10 | Amelie HENSON | 10 | Scott Hall 8 | 1:16.24 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 21 | Eve LAWRENCE | 11 | Pudsey 8 | 1:12.00 |
| 1 | 23 | Olivia SHILLITO | 9 | John Smeaton | 1:11.00 |
| 2 | 25 | Bo HASHEMI | 10 | Co Leeds | 1:10.07 |
| 3 | 27 | Robyn HOWARD | 8 | T.I.D | 1:10.00 |
| 4 | 29 | Maria TOBIN | 9 | Co Leeds | 1:09.26 |
| 5 | 28 | Freya LEMAN | 9 | T.I.D | 1:10.00 |
| 6 | 26 | Annabelle BECKRAM | 10 | Pudsey 8 | 1:10.00 |
| 7 | 24 | Sophie WHITAKER | 9 | Airborough 8 | 1:10.71 |
| 8 | 22 | Kadie WATERSTON | 9 | Co Leeds | 1:11.35 |
| 9 | 20 | Olivia PAINE | 9 | Co Leeds | 1:13.54 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 31 | Ava MESSENGER | 8 | Co Leeds | 1:03.80 |
| 1 | 33 | Isabel HANDLEY | 9 | Co Leeds | 1:01.81 |
| 2 | 35 | Emma GUARDIOLA | 9 | Scott Hall 8 | 1:01.05 |
| 3 | 37 | Isobel GILLEY | 10 | Scott Hall 8 | 1:00.06 |
| 4 | 39 | Freya COTTERILL | 9 | Co Leeds | 58.28 |
| 5 | 38 | Emma GRIFFITHS | 10 | T.I.D | 59.39 |
| 6 | 36 | Ellie OXLEY-HOLMES | 11 | Pudsey 8 | 1:01.00 |
| 7 | 34 | Aira WILKINSON | 9 | Co Leeds | 1:01.15 |
| 8 | 32 | Annabelle HART | 9 | Kirkstall 8 | 1:03.00 |
| 9 | 30 | Lauren GARDENER | 9 | Co Leeds | 1:07.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 41 | Sophia BETTIS | 9 | Co Leeds | 57.38 |
| 1 | 43 | Eloise ANDREASEN | 8 | Co Leeds | 56.44 |
| 2 | 45 | Martyna SZYMANSKA | 10 | Co Leeds | 55.28 |
| 3 | 47 | Evie BOWMAN | 11 | Co Leeds | 55.21 |
| 4 | 49 | Elizabeth WILKINSON | 9 | John Smeaton | 54.65 |
| 5 | 48 | Evie HOBSON | 9 | Co Leeds | 55.00 |
| 6 | 46 | Miriam EFIMOVA | 9 | Co Leeds | 55.23 |
| 7 | 44 | Caitlyn SMITH | 9 | Co Leeds | 55.84 |
| 8 | 42 | Holly HURST | 11 | Co Leeds | 56.66 |
| 9 | 40 | Evie INGRAM | 10 | Co Leeds | 57.53 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 51 | Mia STEEDEN | 10 | Co Leeds | 54.17 |
| 1 | 53 | Ellie AKHTAR | 9 | Co Leeds | 51.63 |
| 2 | 55 | Millie WALKER | 9 | Co Leeds | 50.44 |
| 3 | 57 | Lauren THORN | 9 | Co Leeds | 49.31 |
| 4 | 59 | Amelie ANDREASEN | 10 | Co Leeds | 48.77 |
| 5 | 58 | Michalina SZYMANSKA | 11 | Co Leeds | 49.00 |
| 6 | 56 | Sophie RAMSHAW | 9 | Co Leeds | 49.53 |
| 7 | 54 | Isabelle WOOD | 11 | Scott Hall 8 | 51.48 |
| 8 | 52 | Megan TRAVIS | 9 | Co Leeds | 51.69 |
| 9 | 50 | Ava PROCTOR | 10 | Co Leeds | 54.53 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 61 | Maggie TRAN | 11 | Scott Hall 8 | 48.07 |
| 1 | 63 | Poppy TURNER | 11 | Scott Hall 8 | 45.69 |
| 2 | 65 | Matilda ASHCROFT | 10 | Co Leeds | 45.52 |
| 3 | 67 | Ruby ELLIS | 10 | Co Leeds | 44.48 |
| 4 | 69 | Charlotte MORETON | 10 | Co Leeds | 42.81 |
| 5 | 68 | Isobella MEDIRATTA | 10 | Co Leeds | 44.17 |
| 6 | 66 | Isla LAKE | 11 | Airborough 8 | 45.19 |
| 7 | 64 | Alex NEWTON | 10 | Co Leeds | 45.57 |
| 8 | 62 | Caitlin CHILD | 11 | Airborough 8 | 47.50 |
| 9 | 60 | Matilda POTTER | 10 | Kirkstall 8 | 48.60 |