EVENT 203 Womens Open 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Eva Okaro | 12 | Sevenoaks | 1:08.14 |
| 4 | 3 | Kate Morris | 13 | Nova Cent'n | 1:08.09 |
| 5 | 2 | Jessica Lawton | 12 | Co Bristol | 1:08.11 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 5 | Anna O'Brien | 14 | Newcastle | 1:07.93 |
| 1 | 7 | Lola Morales | 13 | Tynemouth | 1:07.89 |
| 2 | 9 | Jessica Mellor | 13 | Cosacss | 1:07.79 |
| 3 | 11 | Valeria Giron | 13 | Hatfield | 1:07.75 |
| 4 | 13 | Emily Cornish | 14 | Plymouth Lea | 1:07.69 |
| 5 | 12 | Charlotte Berry | 14 | Co Sheffield | 1:07.75 |
| 6 | 10 | Ruby Wheeler | 12 | Basildon Ph | 1:07.78 |
| 7 | 8 | Lydia Parker | 14 | Hamble Aq | 1:07.89 |
| 8 | 6 | Beatrice Clover | 14 | Stockport Mo | 1:07.89 |
| 9 | 4 | Jessica Hanley | 13 | Co Manch Aq | 1:08.06 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 15 | Nadya Sterling | 14 | Co Birm'ham | 1:07.66 |
| 1 | 17 | Lauren Knight | 14 | Co Birm'ham | 1:07.46 |
| 2 | 19 | Leah Evans | 13 | Co Bristol | 1:07.40 |
| 3 | 21 | Millie Checkley | 14 | Co Birm'ham | 1:07.36 |
| 4 | 23 | Francesca Gilpin | 15 | Bristol Hen | 1:07.23 |
| 5 | 22 | Hannah Lambert | 15 | RTW Monson | 1:07.23 |
| 6 | 20 | Meadow Dronsfield | 14 | Co Manch Aq | 1:07.37 |
| 7 | 18 | Grace Conroy | 13 | Co Sheffield | 1:07.43 |
| 8 | 16 | Bethan Endicott | 13 | St Ives | 1:07.57 |
| 9 | 14 | Lois Keyes | 14 | Co Liverpool | 1:07.66 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 25 | Gracie May | 14 | Teddington | 1:07.18 |
| 1 | 27 | Abbie Lewis | 15 | Cosacss | 1:07.14 |
| 2 | 29 | Erin Donnelly | 15 | Bo Stockton | 1:07.12 |
| 3 | 31 | Lauren Clark | 16 | Ripley | 1:07.11 |
| 4 | 33 | Isabel Iley | 13 | Bo Waltham F | 1:07.11 |
| 5 | 32 | Mia Burns | 16 | RTW Monson | 1:07.11 |
| 6 | 30 | Michaela Stephen | 16 | Co Derby | 1:07.12 |
| 7 | 28 | Keanna Kowal | 14 | Co Leicester | 1:07.13 |
| 8 | 26 | Libby Dunford | 15 | Hoddesdon | 1:07.17 |
| 9 | 24 | Alicia Corver | 14 | Bromley | 1:07.21 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 35 | Bryher Shears | 15 | Exeter City | 1:07.04 |
| 1 | 37 | Meredith Harness | 15 | Team Jorvik | 1:06.90 |
| 2 | 39 | Amelie Turner | 14 | Co Leeds | 1:06.89 |
| 3 | 41 | Simone Ellson | 16 | Pioneer 79 | 1:06.87 |
| 4 | 43 | Jessica McDonough | 16 | Co Liverpool | 1:06.82 |
| 5 | 42 | Rhiannon Evans | 14 | Millfield | 1:06.83 |
| 6 | 40 | Hermione Roe | 13 | Co Bradford | 1:06.89 |
| 7 | 38 | Annabelle Wilkinson | 13 | Co Sheffield | 1:06.89 |
| 8 | 36 | Megan Molloy | 16 | Enfield Sq | 1:07.02 |
| 9 | 34 | Josephine Klein | 13 | Exeter City | 1:07.08 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 45 | Elizabeth Woodcock | 16 | Preston | 1:06.74 |
| 1 | 47 | Milly Boulding | 14 | Bo Kirklees | 1:06.59 |
| 2 | 49 | Hattie Varley | 13 | Burnley BOBC | 1:06.51 |
| 3 | 51 | Ruby Dagless | 13 | Dereham | 1:06.48 |
| 4 | 53 | Caitlin Cambrook | 15 | Co Sund'land | 1:06.34 |
| 5 | 52 | Ella Hale | 15 | West Suffolk | 1:06.39 |
| 6 | 50 | May Bradburn | 14 | Chelmsford | 1:06.50 |
| 7 | 48 | Charlotte Moores | 15 | Guildford Ct | 1:06.58 |
| 8 | 46 | Charlotte Johnson | 15 | Mid Sussex | 1:06.71 |
| 9 | 44 | Isabella Renwick | 15 | Millfield | 1:06.82 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 55 | Eliza Pinkstone | 13 | Stockport Mo | 1:06.28 |
| 1 | 57 | Chloe Harris | 13 | Royal Wolv | 1:06.25 |
| 2 | 59 | Ella Fisher | 16 | York City | 1:06.23 |
| 3 | 61 | Megan Dean | 16 | Wolv'hampton | 1:06.21 |
| 4 | 63 | Paige Coombs | 15 | Guildford Ct | 1:06.04 |
| 5 | 62 | Faye Francis | 15 | Portsmouth N | 1:06.17 |
| 6 | 60 | Daisy Lovegrove | 15 | Reading | 1:06.22 |
| 7 | 58 | Tiana Porter | 16 | Co Oxford | 1:06.24 |
| 8 | 56 | Molly Chambers | 16 | Donc Dartes | 1:06.26 |
| 9 | 54 | Eve Leleux | 15 | Wrekin Coll | 1:06.31 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 67 | Emily Ford | 16 | Co Oxford | 1:05.97 |
| 1 | 73 | Charlyne Lebosse | 16 | Basingstoke | 1:05.74 |
| 2 | 79 | Georgina Tallon | 18 | Potters Bar | 1:04.89 |
| 3 | 85 | Jane Brown | 18 | Newcastle | 1:04.36 |
| 4 | 91 | Regitze Gaard | 17 | Denmark | 1:01.69 |
| 5 | 88 | Poppy Richardson | 17 | Co Peterboro | 1:03.91 |
| 6 | 82 | Holly Williams | 20 | N Lincs SS | 1:04.73 |
| 7 | 76 | Orla Rabey | 17 | Beau Sejour | 1:05.32 |
| 8 | 70 | Annabel Smith | 15 | Bromley | 1:05.90 |
| 9 | 64 | Lauren Woods | 16 | Lincoln Vulc | 1:06.03 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 68 | Juliette Lawrence | 15 | Epsom Dist | 1:05.94 |
| 1 | 74 | Abigail Farkas | 16 | Grantham | 1:05.72 |
| 2 | 80 | Spencer Williams | 18 | Brompton | 1:04.86 |
| 3 | 86 | Martyna Ruszkowska | 17 | Mt Kelly | 1:04.29 |
| 4 | 92 | Katrine Bukh Villesen | 18 | Denmark | 1:01.29 |
| 5 | 89 | Milly Scotchbrook | 18 | Co Leicester | 1:03.53 |
| 6 | 83 | Rebecca Twardochleb | 19 | Newcastle St | 1:04.64 |
| 7 | 77 | Hannah Trowsdale | 17 | Loftus Dol | 1:05.05 |
| 8 | 71 | Jodie Gittins | 16 | Wigan BEST | 1:05.86 |
| 9 | 65 | Amelia Rodd | 16 | Redditch | 1:06.02 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 69 | Delphine Little | 15 | Co Oxford | 1:05.92 |
| 1 | 75 | Victoria Adams | 16 | Plymouth Lea | 1:05.68 |
| 2 | 81 | Ciara Walsh | 18 | Guildford Ct | 1:04.77 |
| 3 | 87 | Ella Johnson | 18 | Southport | 1:04.15 |
| 4 | 93 | Cecilie Wiuff | 18 | Denmark | 1:00.96 |
| 5 | 90 | Julie K Svendsen | 16 | Kvik Kastrup | 1:03.37 |
| 6 | 84 | Rhiannon Bowen | 17 | Team Bath AS | 1:04.51 |
| 7 | 78 | Zara Leleux | 17 | Wrekin Coll | 1:04.97 |
| 8 | 72 | Abigail Lacey | 16 | Portsmouth N | 1:05.77 |
| 9 | 66 | Maisie Thornton | 15 | Brighton | 1:05.98 |