EVENT 409 Womens Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Lilly-Marie Derry | 12 | Beckenham | 1:10.13 |
| 4 | 3 | Jessica Mellor | 13 | Cosacss | 1:10.08 |
| 5 | 2 | Isobel Bryant | 13 | Plymouth Lea | 1:10.09 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 5 | Leah Evans | 13 | Co Bristol | 1:10.04 |
| 2 | 7 | Georgiana Bot | 13 | Wigan BEST | 1:10.00 |
| 3 | 9 | Abigail Febrey | 13 | Wells SC | 1:09.94 |
| 4 | 11 | Isobel Hextall | 13 | KingstonHull | 1:09.91 |
| 5 | 10 | Daisy Dewsbury | 13 | Bracknell | 1:09.91 |
| 6 | 8 | Molly Leamon | 13 | Windsor | 1:09.95 |
| 7 | 6 | Ella Turner | 13 | Basildon Ph | 1:10.00 |
| 8 | 4 | Chloe Harris | 13 | Royal Wolv | 1:10.05 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 13 | Imogen Block | 14 | St Felix Sch | 1:09.60 |
| 1 | 15 | Niamh Ward | 14 | Team Bath AS | 1:09.54 |
| 2 | 17 | Lucy Hitchin | 13 | Co Leicester | 1:09.42 |
| 3 | 19 | Sophie Lander | 13 | Stowmarket | 1:09.30 |
| 4 | 21 | Iona Colbert | 13 | Grantham | 1:09.17 |
| 5 | 20 | Lauren Bradley-Holt | 14 | Co Salford | 1:09.24 |
| 6 | 18 | Georgia Ashton | 14 | Bolton Metro | 1:09.37 |
| 7 | 16 | Jessica Smith | 14 | Co Manch Aq | 1:09.44 |
| 8 | 14 | Evelyn Davis | 14 | Bromley | 1:09.56 |
| 9 | 12 | Evie Dilley | 12 | Middlesboro | 1:09.71 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 23 | Libby Freeman | 12 | Tynemouth | 1:09.12 |
| 1 | 25 | Ella Bainbridge | 14 | N Lincs SS | 1:08.98 |
| 2 | 27 | Hannah Camden | 13 | Co Salford | 1:08.90 |
| 3 | 29 | Jessica Keogh | 14 | Hatfield | 1:08.82 |
| 4 | 31 | Emily Whyte | 15 | teamipswich | 1:08.75 |
| 5 | 30 | Cara O'Toole | 15 | Hillingdon | 1:08.79 |
| 6 | 28 | Lucy Block | 14 | Thame | 1:08.83 |
| 7 | 26 | Grace Waller | 14 | Basildon Ph | 1:08.90 |
| 8 | 24 | Lily-May Marston | 13 | Wolv'hampton | 1:09.12 |
| 9 | 22 | M Calvesbert-Sharp | 14 | Millfield | 1:09.15 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 33 | Abbie Wyatt | 15 | Southport | 1:08.65 |
| 1 | 35 | Sadie Goldin | 14 | Anaconda | 1:08.60 |
| 2 | 37 | Isabella Renwick | 15 | Millfield | 1:08.56 |
| 3 | 39 | Charlotte Thompson | 14 | Loftus Dol | 1:08.49 |
| 4 | 41 | Lucy Aherne | 15 | Stockport Mo | 1:08.43 |
| 5 | 40 | Amber Downham | 13 | Chesterfield | 1:08.46 |
| 6 | 38 | Gerda Vasiliauskaite | 15 | Ellesmere Co | 1:08.50 |
| 7 | 36 | Freya Barlow | 14 | Newbury | 1:08.58 |
| 8 | 34 | Millie Tomlin-Davies | 15 | Co Oxford | 1:08.64 |
| 9 | 32 | Emily Driver | 15 | Hillingdon | 1:08.68 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 43 | Charlotte Norman | 13 | Colchester | 1:08.31 |
| 1 | 45 | Lucy Gratton | 15 | Bassetlaw SS | 1:08.16 |
| 2 | 47 | Delphine Little | 15 | Co Oxford | 1:08.13 |
| 3 | 49 | Carys Brealey | 14 | Harlow Pen | 1:08.09 |
| 4 | 51 | Alexia Jackson | 15 | Bromley | 1:07.99 |
| 5 | 50 | Sadie Lucas | 14 | Chalfont | 1:08.08 |
| 6 | 48 | Paige Coombs | 15 | Guildford Ct | 1:08.10 |
| 7 | 46 | Faye Francis | 15 | Portsmouth N | 1:08.16 |
| 8 | 44 | Milly Boulding | 14 | Bo Kirklees | 1:08.31 |
| 9 | 42 | Madeleine Squires | 14 | Co Leicester | 1:08.34 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 53 | Kate Baxter | 15 | Portsmouth N | 1:07.86 |
| 1 | 55 | Katherine Henderson | 15 | Guildford Ct | 1:07.63 |
| 2 | 57 | Naomi Dilley | 16 | Derventio | 1:07.58 |
| 3 | 59 | Abbie Low | 16 | Chelmsford | 1:07.57 |
| 4 | 61 | Charlotte O'Leary | 16 | Chelsea&West | 1:07.43 |
| 5 | 60 | Madeleine Soper | 15 | Weston S M | 1:07.52 |
| 6 | 58 | Lily Massey | 15 | Co Birm'ham | 1:07.57 |
| 7 | 56 | Carmen Bywater | 15 | BorRedbridge | 1:07.60 |
| 8 | 54 | Asma Parker | 15 | Colchester | 1:07.85 |
| 9 | 52 | Lottie James | 14 | AbingdonVale | 1:07.93 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 65 | Olivia Norman | 16 | Colchester | 1:07.00 |
| 1 | 71 | Abigail Jolley | 16 | Leamington | 1:06.82 |
| 2 | 77 | Isobel Hume | 16 | Northampton | 1:06.68 |
| 3 | 83 | Rachel Wellings | 18 | Co Peterboro | 1:06.31 |
| 4 | 89 | Eleanor Phesse | 17 | Carn Brea | 1:05.44 |
| 5 | 86 | Jasmine Iley | 17 | Bo Waltham F | 1:06.01 |
| 6 | 80 | Robyn Moon | 17 | Thanet Swim | 1:06.47 |
| 7 | 74 | Emma Jones | 17 | Co Salford | 1:06.74 |
| 8 | 68 | Olivia Burrow | 16 | Exeter City | 1:06.88 |
| 9 | 62 | Mirabelle Waters | 16 | Chesham | 1:07.28 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 66 | Emily Ford | 16 | Co Oxford | 1:07.00 |
| 1 | 72 | Lauren Stott | 16 | Hatfield | 1:06.81 |
| 2 | 78 | Ellie Walker | 17 | Tadcaster | 1:06.56 |
| 3 | 84 | Holly Hudghton | 17 | TauntonDeane | 1:06.23 |
| 4 | 90 | Emma Rowson | 18 | Stockport Mo | 1:05.21 |
| 5 | 87 | Sophie Johnson | 18 | Teddington | 1:05.95 |
| 6 | 81 | Danielle Rayner | 22 | March | 1:06.44 |
| 7 | 75 | Megan Molloy | 16 | Enfield Sq | 1:06.70 |
| 8 | 69 | Emma Leslie | 17 | Co Peterboro | 1:06.87 |
| 9 | 63 | Erika Best | 16 | Newcastle | 1:07.20 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 67 | Holly White | 16 | Co Liverpool | 1:06.93 |
| 1 | 73 | Lily Girardet | 16 | Hackney | 1:06.78 |
| 2 | 79 | Kate Butler | 16 | Stockport Mo | 1:06.52 |
| 3 | 85 | Denice Gardo | 17 | Swindon Dolp | 1:06.21 |
| 4 | 91 | Sara Sylvest | 18 | Denmark | 1:03.35 |
| 5 | 88 | Anna Marley | 17 | Harrogate | 1:05.78 |
| 6 | 82 | Jocelyn Cosmatos | 16 | Leatherhead | 1:06.44 |
| 7 | 76 | Emily Lane | 22 | Basildon Ph | 1:06.68 |
| 8 | 70 | Megan Pye | 16 | Co Norwich | 1:06.86 |
| 9 | 64 | Gemma Elliott | 16 | Havant & Wat | 1:07.16 |