EVENT 312 Women Open 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 3 | 1 | Olivia Anstey | 08 | Louth | 1:05.50 |
| 4 | 3 | Annabel Crees | 07 | Leamington | 1:05.24 |
| 5 | 2 | Delilah Martin | 09 | Haslemere | 1:05.47 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 5 | Scarlett Sim | 08 | Guildford Ct | 1:05.10 |
| 1 | 7 | Emily Serafini | 07 | Bromley | 1:04.96 |
| 2 | 9 | Alyssa Lo | 08 | Co Leicester | 1:04.91 |
| 3 | 11 | Jessica Huggins | 08 | Poole | 1:04.87 |
| 4 | 13 | Grace Greenhalf | 07 | Co Norwich | 1:04.78 |
| 5 | 12 | Poppy Lawrence | 07 | Epsom Dist | 1:04.79 |
| 6 | 10 | Lara Treharne | 07 | Co Peterboro | 1:04.89 |
| 7 | 8 | Sophia Gledhill | 07 | Co Bradford | 1:04.94 |
| 8 | 6 | Jessica Smelt | 07 | Bo Kirklees | 1:05.04 |
| 9 | 4 | Victoria Bunimovich | 07 | Chelsea&West | 1:05.24 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 15 | Eloise Cole | 08 | Modernian | 1:04.59 |
| 1 | 17 | Amber Downham | 05 | Plymouth Lea | 1:04.56 |
| 2 | 19 | Annabel Pilgrim | 06 | Mt Kelly | 1:04.53 |
| 3 | 21 | Millie Wells | 07 | Co Leicester | 1:04.50 |
| 4 | 23 | Martha Sell | 06 | Co Bristol | 1:04.36 |
| 5 | 22 | Nancy Knight | 07 | Guildford Ct | 1:04.50 |
| 6 | 20 | Scarlett Sheppard | 10 | Guildford Ct | 1:04.51 |
| 7 | 18 | Valeria Giron | 05 | Hatfield | 1:04.54 |
| 8 | 16 | Oriana Wheeler | 05 | Beau Sejour | 1:04.56 |
| 9 | 14 | Blythe Kinsman | 07 | Mt Kelly | 1:04.78 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 25 | Mae Singer | 05 | Gloucester | 1:04.17 |
| 1 | 27 | Mia Burslem | 06 | Co Liverpool | 1:04.09 |
| 2 | 29 | Grace Conroy | 05 | Repton | 1:03.96 |
| 3 | 31 | Annabel Chan | 07 | Millfield | 1:03.91 |
| 4 | 33 | Daisy Dewsbury | 05 | Bracknell | 1:03.85 |
| 5 | 32 | Isla Jones | 07 | Co Sheffield | 1:03.87 |
| 6 | 30 | Olivia Newman-Baronius | 06 | Putteridge | 1:03.93 |
| 7 | 28 | Jessica To | 06 | Leander | 1:04.00 |
| 8 | 26 | Edie Price | 09 | Mt Kelly | 1:04.12 |
| 9 | 24 | Megan Donovan | 07 | Co Peterboro | 1:04.20 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 35 | Annabel Dewhurst | 06 | Anaconda | 1:03.79 |
| 1 | 37 | Megan Davies | 05 | Co Coventry | 1:03.77 |
| 2 | 39 | Isabelle Leigh | 04 | Truro City | 1:03.69 |
| 3 | 41 | Sophie Traill | 07 | Stockport Mo | 1:03.66 |
| 4 | 43 | Erin Tankard | 07 | Co Sheffield | 1:03.63 |
| 5 | 42 | Ines Guimond-Beetham | 08 | Camden Swiss | 1:03.64 |
| 6 | 40 | Julia Pawlik | 06 | Hillingdon | 1:03.67 |
| 7 | 38 | Alice Weston | 06 | Wycombe Dist | 1:03.74 |
| 8 | 36 | Ella Thornburg | 06 | Littleh'pton | 1:03.78 |
| 9 | 34 | Rebecca Amor | 03 | Co Manch Aq | 1:03.82 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 45 | Zahra Davies | 06 | Millfield | 1:03.60 |
| 1 | 47 | Eve Tinsley | 06 | Newcastle St | 1:03.50 |
| 2 | 49 | Jessica Mellor | 05 | Cosacss | 1:03.48 |
| 3 | 51 | Indigo Spence | 08 | Chelsea&West | 1:03.32 |
| 4 | 53 | Lucy Turner | 05 | Burnley BOBC | 1:03.23 |
| 5 | 52 | Charlotte Smith | 07 | Norwich Swan | 1:03.24 |
| 6 | 50 | Beth Hall | 05 | Mt Kelly | 1:03.47 |
| 7 | 48 | Ella Bainbridge | 04 | Mt Kelly | 1:03.49 |
| 8 | 46 | Annabelle Compton | 08 | Wycombe Dist | 1:03.53 |
| 9 | 44 | Charlotte White | 05 | West Suffolk | 1:03.63 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 55 | Lillie Grover | 07 | Wyre Forest | 1:03.20 |
| 1 | 57 | Holly Marshall | 06 | Repton | 1:02.94 |
| 2 | 59 | Caitlyn Fry | 04 | Swansea Uni | 1:02.83 |
| 3 | 61 | Annabel Smith | 03 | Bath Univ | 1:02.82 |
| 4 | 63 | Skye Carter | 07 | Basildon Ph | 1:02.75 |
| 5 | 62 | Madison Johnson | 05 | Donc Dartes | 1:02.81 |
| 6 | 60 | Lydia Parker | 04 | Bath Univ | 1:02.82 |
| 7 | 58 | Eliza Pinkstone | 05 | Stockport Mo | 1:02.93 |
| 8 | 56 | Poppy Baybutt | 05 | Co Milton K | 1:02.97 |
| 9 | 54 | Henrietta D'Ammassa | 05 | Repton | 1:03.22 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 67 | Annabelle Wilkinson | 05 | Co Sheffield | 1:02.66 |
| 1 | 73 | Lucy Fox | 06 | Wycombe Dist | 1:01.68 |
| 2 | 79 | Milly Scotchbrook | 00 | Braunstone | 1:01.37 |
| 3 | 85 | Laura Dickinson | 05 | Mt Kelly | 1:01.20 |
| 4 | 91 | Jessica Calderbank | 97 | Co Manch Aq | 58.97 |
| 5 | 88 | Megan Allison | 02 | Swansea Uni | 1:00.24 |
| 6 | 82 | May Bradburn | 04 | Basildon Ph | 1:01.31 |
| 7 | 76 | Sacha Thomas | 03 | Co Norwich | 1:01.50 |
| 8 | 70 | Maisie Thornton | 03 | SurreyUni SC | 1:02.52 |
| 9 | 64 | Ellie O'Keeffe | 00 | Co Cambridge | 1:02.74 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 68 | Despoina Giannakaki | 07 | Co Milton K | 1:02.64 |
| 1 | 74 | Ping Yi Audrey Lau | 05 | Co Birm'ham | 1:01.61 |
| 2 | 80 | Eva Okaro | 06 | Sevenoaks | 1:01.36 |
| 3 | 86 | Hollie Widdows | 06 | Mt Kelly | 1:01.20 |
| 4 | 92 | Georgina Pryor | 98 | Derventio | 58.38 |
| 5 | 89 | Betsy Wizard | 03 | Northampton | 59.45 |
| 6 | 83 | Emily Ford | 02 | SurreyUni SC | 1:01.29 |
| 7 | 77 | Catherine Eland | 04 | Poole | 1:01.49 |
| 8 | 71 | Molly Chambers | 02 | Co Sheffield | 1:02.52 |
| 9 | 65 | Amy West | 04 | Stockport Mo | 1:02.71 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 69 | Georgia Holgate | 07 | Co Cambridge | 1:02.62 |
| 1 | 75 | Jessica Lawton | 06 | Co Bristol | 1:01.57 |
| 2 | 81 | Flawia Kamzol | 07 | Mt Kelly | 1:01.34 |
| 3 | 87 | Ekaterina Price | 01 | Bath Univ | 1:01.12 |
| 4 | 93 | Laura Stephens | 99 | Loughborogh | 58.05 |
| 5 | 90 | Emily Large | 01 | Millfield | 59.25 |
| 6 | 84 | Alma Dahl | 05 | Plymouth Lea | 1:01.25 |
| 7 | 78 | Erika Pasakinskaite | 06 | Bark & Dagen | 1:01.44 |
| 8 | 72 | Leah Evans | 05 | Co Bristol | 1:02.44 |
| 9 | 66 | Eja Coe | 06 | Derventio | 1:02.67 |