EVENT 103 Female 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | G ROBERTS-SMITH | 9 | Co Leeds | |
| 2 | 3 | Millie NEALE | 8 | Co Leeds | |
| 3 | 5 | Hannah CROFTON | 9 | Aire 8 | |
| 4 | 7 | Sophie PATTERSON | 8 | Co Leeds | |
| 5 | 6 | Faith BRAYSHAW | 10 | Aire 8 | |
| 6 | 4 | Steph WHITE | 11 | Kirkstall 8 | |
| 7 | 2 | Omoiyekewmen IREDIA | 9 | JCCS 8 | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Isabella RIMMINGTON | 9 | Co Leeds | |
| 1 | 11 | Evelyn PACE | 8 | Scott Hall 8 | |
| 2 | 13 | C ROBERTS-SMITH | 8 | Co Leeds | |
| 3 | 15 | Matilda SHIRLEY-PRICE | 8 | Co Leeds | |
| 4 | 17 | Holly BROWN | 8 | Co Leeds | 1:28.13 |
| 5 | 16 | Hallie MILLER | 9 | Smeaton 8 | 1:40.52 |
| 6 | 14 | Lucy HOLLOWAY | 8 | Aire 8 | |
| 7 | 12 | Elizabeth ROTHWELL | 9 | Co Leeds | |
| 8 | 10 | Onadi GUNARATHNE | 8 | Co Leeds | |
| 9 | 8 | Zahra JEEVA | 8 | Kirkstall 8 | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 19 | Lily Rose TURNER | 9 | Rothwell 8 | 1:23.26 |
| 1 | 21 | Poppy JOHNSTONE | 10 | JCCS 8 | 1:21.24 |
| 2 | 23 | Olivia SHIELS | 9 | Smeaton 8 | 1:15.86 |
| 3 | 25 | Sienna XU | 11 | Fearnville 8 | 1:13.89 |
| 4 | 27 | Florence BRUCE | 11 | Smeaton 8 | 1:13.63 |
| 5 | 26 | Amy FIELDS | 10 | Fearnville 8 | 1:13.89 |
| 6 | 24 | Isabelle WADE | 11 | Pudsey 8 | 1:14.00 |
| 7 | 22 | Emma PITTAM | 9 | Rothwell 8 | 1:18.00 |
| 8 | 20 | Matilda PENNELLS | 8 | Co Leeds | 1:23.17 |
| 9 | 18 | Sophia COLEMAN | 8 | Co Leeds | 1:23.88 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 29 | Annabelle FENTON | 10 | Rothwell 8 | 1:12.68 |
| 1 | 31 | Emma GLOSEK | 9 | Co Leeds | 1:11.23 |
| 2 | 33 | Holly APPLEBY | 10 | Pudsey 8 | 1:11.00 |
| 3 | 35 | Jovie CLARKE | 10 | Holt Park 8 | 1:10.06 |
| 4 | 37 | Ava ALLEN | 9 | Co Leeds | 1:08.27 |
| 5 | 36 | Sofia GUEN | 10 | Pudsey 8 | 1:10.00 |
| 6 | 34 | Evie MORAN | 10 | Co Leeds | 1:10.08 |
| 7 | 32 | Sophie LARKIN | 10 | JCCS 8 | 1:11.20 |
| 8 | 30 | Harper ELLIS | 8 | Co Leeds | 1:12.40 |
| 9 | 28 | Ferne DYSON | 9 | Co Leeds | 1:13.23 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 39 | Isabella HUTCHISON | 8 | Co Leeds | 1:07.71 |
| 1 | 41 | Gabriella PIORO | 11 | Scott Hall 8 | 1:03.15 |
| 2 | 43 | Nina PLUDOWSKA | 12 | Scott Hall 8 | 1:02.38 |
| 3 | 45 | Dora WALMSLEY | 10 | Scott Hall 8 | 1:02.08 |
| 4 | 47 | Isabelle JORDAN | 8 | Co Leeds | 1:00.27 |
| 5 | 46 | Amber RULE | 12 | Kirkstall 8 | 1:01.00 |
| 6 | 44 | Franka HOSTERT | 10 | Fearnville 8 | 1:02.18 |
| 7 | 42 | Willow POLLITT | 10 | Pudsey 8 | 1:03.00 |
| 8 | 40 | Matilda DARK | 8 | Scott Hall 8 | 1:06.12 |
| 9 | 38 | Anya CLARKE | 10 | Fearnville 8 | 1:07.94 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 49 | Emilia DEVERILL | 10 | Co Leeds | 59.65 |
| 1 | 51 | Harriet HARSLEY | 9 | Co Leeds | 58.70 |
| 2 | 53 | Elsie BAKER | 11 | Scott Hall 8 | 58.12 |
| 3 | 55 | Francesca SPALDING | 10 | Co Leeds | 57.68 |
| 4 | 57 | Daisy WHETSTONE-VEITCH | 11 | Pudsey 8 | 57.32 |
| 5 | 56 | Riya ATWAL | 10 | Co Leeds | 57.41 |
| 6 | 54 | Stella CROSSLAND | 10 | Co Leeds | 57.68 |
| 7 | 52 | Evie CANNING | 10 | Scott Hall 8 | 58.12 |
| 8 | 50 | Zoe WRIGHT | 10 | Co Leeds | 59.27 |
| 9 | 48 | E PERMLERS DRIEHAUS | 9 | Kirkstall 8 | 1:00.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 59 | Leah MACDONALD | 9 | Co Leeds | 56.97 |
| 1 | 61 | Isla MCDONNELL | 11 | Co Leeds | 55.97 |
| 2 | 63 | Rosemary DUNNIGAN | 9 | Scott Hall 8 | 55.15 |
| 3 | 65 | Erin HARGREAVES | 10 | Co Leeds | 53.20 |
| 4 | 67 | Martha WADDELL | 11 | Co Leeds | 52.64 |
| 5 | 66 | Ana BICKERS | 10 | Co Leeds | 53.11 |
| 6 | 64 | Annabelle ALLSHORN | 11 | Holt Park 8 | 53.60 |
| 7 | 62 | Lexi HADDEN | 10 | Armley 8 | 55.52 |
| 8 | 60 | Ella HARRISON | 10 | Co Leeds | 56.91 |
| 9 | 58 | Alex GRAY | 11 | Scott Hall 8 | 57.08 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 69 | Annabeth LOU-DAVEY | 10 | Holt Park 8 | 52.14 |
| 1 | 71 | Anna GLOSEK | 11 | Co Leeds | 50.53 |
| 2 | 73 | Ayla CARRY | 10 | Co Leeds | 50.17 |
| 3 | 75 | Molly CHILD | 11 | Co Leeds | 48.80 |
| 4 | 77 | Lilia CLARKE | 12 | Holt Park 8 | 47.98 |
| 5 | 76 | Robyn DIAMANT | 11 | Co Leeds | 48.20 |
| 6 | 74 | Michelle BROGDEN | 9 | Co Leeds | 50.00 |
| 7 | 72 | Esther GLAZZARD | 12 | Scott Hall 8 | 50.48 |
| 8 | 70 | Katie SADLER | 9 | Co Leeds | 50.60 |
| 9 | 68 | Daisy CARDIS | 11 | Co Leeds | 52.63 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 79 | Annabel CRAKER | 11 | Co Leeds | 46.82 |
| 1 | 81 | Sophie GORDOIS | 11 | Co Leeds | 45.99 |
| 2 | 83 | Bela MONTGOMERY | 11 | Co Leeds | 44.42 |
| 3 | 85 | Madeline BECKRAM | 10 | Co Leeds | 42.34 |
| 4 | 87 | Abigail COLLEY | 12 | Co Leeds | 40.19 |
| 5 | 86 | Maisie BARKER | 12 | Co Leeds | 40.81 |
| 6 | 84 | Martha ASHTON | 11 | Co Leeds | 44.26 |
| 7 | 82 | Poppy CHRISTIE | 11 | Scott Hall 8 | 45.79 |
| 8 | 80 | Lucy RICHARDSON | 12 | Holt Park 8 | 46.00 |
| 9 | 78 | Olivia WALKER | 11 | Scott Hall 8 | 46.96 |