EVENT 103 Female 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Ema GHERMANSCHI-LUNGU | 10 | Co Leeds | |
| 2 | 3 | Florence OLDHAM | 8 | Co Leeds | |
| 3 | 5 | Isla REEHAL | 9 | JCCS 8 | |
| 4 | 7 | Eden CHITURA | 9 | Co Leeds | |
| 5 | 6 | Tilly JAIN | 11 | Kirkstall 8 | |
| 6 | 4 | Aaradhya RANE | 11 | JCCS 8 | |
| 7 | 2 | Emily Rose GARRICK | 8 | Co Leeds | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Eliza HASSAN | 9 | JCCS 8 | |
| 1 | 11 | Ilapreet Kaur TWEDDLE | 8 | Co Leeds | 1:40.00 |
| 2 | 13 | Zahra JEEVA | 9 | Smeaton 8 | 1:25.25 |
| 3 | 15 | Florence FARMERY | 12 | Pudsey 8 | 1:20.00 |
| 4 | 17 | Anna GUTU | 9 | Pudsey 8 | 1:20.00 |
| 5 | 16 | Agnes JOYCE | 11 | Kirkstall 8 | 1:20.00 |
| 6 | 14 | Phoebe MALONE | 11 | Morley 8 | 1:25.00 |
| 7 | 12 | Lily WINTERBURN | 10 | Smeaton 8 | 1:34.44 |
| 8 | 10 | India BELLWOOD | 11 | Kirkstall 8 | |
| 9 | 8 | Hannah HEPBURN-WOOD | 9 | Co Leeds | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 19 | Siyona SWAIN | 9 | Morley 8 | 1:20.00 |
| 1 | 21 | Daisy RASOOL | 9 | Co Leeds | 1:18.10 |
| 2 | 23 | Grace ZHOU | 9 | Co Leeds | 1:11.83 |
| 3 | 25 | Matilda BEARDSWORTH | 9 | Fearnville 8 | 1:11.00 |
| 4 | 27 | Alicia COEN | 11 | Kirkstall 8 | 1:10.00 |
| 5 | 26 | Isla HARLAND | 11 | Morley 8 | 1:11.00 |
| 6 | 24 | Georgia CASSON | 10 | Aire 8 | 1:11.48 |
| 7 | 22 | Paige ROBERTSON | 8 | Co Leeds | 1:13.99 |
| 8 | 20 | Peggy HOYLE | 9 | Co Leeds | 1:20.00 |
| 9 | 18 | Amina RAZA | 8 | Co Leeds | 1:20.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 29 | Charlotte ASHWELL | 10 | Co Leeds | 1:10.00 |
| 1 | 31 | Sylvia BAKER | 10 | Scott Hall 8 | 1:09.38 |
| 2 | 33 | Latika MEHTA | 9 | Scott Hall 8 | 1:08.00 |
| 3 | 35 | Niamh MARWICK-TOLLEY | 11 | Rothwell 8 | 1:05.00 |
| 4 | 37 | Quinn ROBERTSON | 10 | Co Leeds | 1:04.80 |
| 5 | 36 | Isabella MEYER | 10 | Scott Hall 8 | 1:05.00 |
| 6 | 34 | Jessica HENRY | 12 | Pudsey 8 | 1:08.00 |
| 7 | 32 | Ivy SHEARD | 10 | Fearnville 8 | 1:09.24 |
| 8 | 30 | Zara ALLMOND | 10 | Aire 8 | 1:10.00 |
| 9 | 28 | Lyra HAMBLETON-FIELD | 9 | Rothwell 8 | 1:10.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 39 | Lily-Rose TURNER | 10 | Rothwell 8 | 1:04.27 |
| 1 | 41 | Annabelle FENTON | 11 | Rothwell 8 | 1:03.63 |
| 2 | 43 | Eva SPAMPINATO | 9 | Smeaton 8 | 1:03.00 |
| 3 | 45 | Sophia Xiu Hui KOK | 10 | Co Leeds | 1:02.33 |
| 4 | 47 | Emily MORRIS | 10 | Aire 8 | 1:02.01 |
| 5 | 46 | Matilda COSGROVE | 12 | Holt Park 8 | 1:02.31 |
| 6 | 44 | Cara MILLAR | 11 | Pudsey 8 | 1:03.00 |
| 7 | 42 | Caitlin DEWHIRST | 9 | Co Leeds | 1:03.12 |
| 8 | 40 | Jemima PAPP | 9 | Aire 8 | 1:03.90 |
| 9 | 38 | Freya READ | 8 | Co Leeds | 1:04.67 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 49 | Stella BOWES | 8 | Co Leeds | 1:01.71 |
| 1 | 51 | Evelyn PACE | 9 | Scott Hall 8 | 1:01.49 |
| 2 | 53 | Sophie PATTERSON | 9 | Co Leeds | 1:01.07 |
| 3 | 55 | Harper ELLIS | 9 | Co Leeds | 1:00.56 |
| 4 | 57 | G KOLACZ APPLEYARD | 12 | Fearnville 8 | 1:00.50 |
| 5 | 56 | Holly BROWN | 9 | Co Leeds | 1:00.51 |
| 6 | 54 | Aria BARKER | 11 | Holt Park 8 | 1:01.00 |
| 7 | 52 | Dora WALMSLEY | 11 | Scott Hall 8 | 1:01.37 |
| 8 | 50 | Millie NEALE | 9 | Co Leeds | 1:01.66 |
| 9 | 48 | Amy FIELDS | 11 | Fearnville 8 | 1:02.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 59 | Gracie HART | 9 | Co Leeds | 59.10 |
| 1 | 61 | Lily HOGAN | 9 | Co Leeds | 58.00 |
| 2 | 63 | Jessica SUTCLIFFE | 9 | Co Leeds | 57.31 |
| 3 | 65 | Emelia SHEARER | 11 | Aire 8 | 56.51 |
| 4 | 67 | Matilda SHERLEY-PRICE | 9 | Co Leeds | 55.51 |
| 5 | 66 | Gabriella PIORO | 12 | Scott Hall 8 | 56.02 |
| 6 | 64 | Hannah CROFTON | 10 | Co Leeds | 56.91 |
| 7 | 62 | C ROBERTS-SMITH | 9 | Co Leeds | 57.88 |
| 8 | 60 | Rosemary DUNNIGAN | 10 | Scott Hall 8 | 59.06 |
| 9 | 58 | Emma PITTAM | 10 | Rothwell 8 | 59.91 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 69 | Lexi HADDEN | 11 | Pudsey 8 | 55.09 |
| 1 | 71 | Evie CANNING | 11 | Scott Hall 8 | 54.17 |
| 2 | 73 | Isabelle WADE | 12 | Pudsey 8 | 53.45 |
| 3 | 75 | Elizabeth ROTHWELL | 10 | Co Leeds | 53.25 |
| 4 | 77 | Lola MALCOLM | 8 | Co Leeds | 52.71 |
| 5 | 76 | Daisy WHETSTONE-VEITCH | 12 | Pudsey 8 | 53.08 |
| 6 | 74 | Ferne DYSON | 10 | Co Leeds | 53.30 |
| 7 | 72 | Sofia GUEN | 11 | Pudsey 8 | 53.99 |
| 8 | 70 | Nell PICKSTOCK | 12 | Aire 8 | 55.09 |
| 9 | 68 | Rosamund TAN | 10 | Co Leeds | 55.24 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 79 | A STANISZEWSKA-SCONTUS | 10 | Co Leeds | 51.60 |
| 1 | 81 | Lena HUDSON | 11 | Co Leeds | 50.00 |
| 2 | 83 | G ROBERTS-SMITH | 10 | Co Leeds | 49.78 |
| 3 | 85 | Faith BRAYSHAW | 11 | Aire 8 | 48.62 |
| 4 | 87 | Erin HARGREAVES | 11 | Co Leeds | 47.70 |
| 5 | 86 | Matilda PENNELLS | 9 | Co Leeds | 47.80 |
| 6 | 84 | Anneliese CIRSTEA | 10 | Co Leeds | 49.20 |
| 7 | 82 | Heidi MACKINTOSH | 12 | Rothwell 8 | 50.00 |
| 8 | 80 | Onadi GUNARATHNE | 9 | Co Leeds | 50.23 |
| 9 | 78 | Matilda DARK | 9 | Co Leeds | 51.93 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 89 | Emma GLOSEK | 10 | Co Leeds | 47.00 |
| 1 | 91 | Ayla CARRY | 11 | Co Leeds | 45.57 |
| 2 | 93 | Aoife DEWHIRST | 11 | Co Leeds | 45.32 |
| 3 | 95 | Anna GLOSEK | 12 | Co Leeds | 44.80 |
| 4 | 97 | Honey CLARK | 12 | Co Leeds | 40.00 |
| 5 | 96 | Zoe WRIGHT | 11 | Co Leeds | 44.04 |
| 6 | 94 | Evie MORAN | 11 | Co Leeds | 45.20 |
| 7 | 92 | Annabeth LOU-DAVEY | 11 | Holt Park 8 | 45.51 |
| 8 | 90 | Sienna XU | 12 | Fearnville 8 | 46.96 |
| 9 | 88 | Sophie LEWIS | 10 | Co Leeds | 47.50 |