EVENT 303 Womens Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 2 | 2 | Lucy Drinkall | 01 | Staines | 1:09.11 |
| 3 | 4 | Sophia Wilson | 01 | Guildford Ct | 1:08.87 |
| 4 | 6 | Viktoria Gnandt | 01 | Co Leeds | 1:08.74 |
| 5 | 5 | Charlotte Nester | 01 | Wigan BEST | 1:08.86 |
| 6 | 3 | Emily Ford | 02 | AbingdonVale | 1:09.02 |
| 7 | 1 | Alice Gouldby | 01 | Millfield | 1:09.17 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 8 | Aiyana Lawson | 01 | Modernians | 1:08.43 |
| 2 | 10 | Brodie Judge | 01 | Hillingdon | 1:07.99 |
| 3 | 12 | Anne Tavierne | 01 | Camden Swiss | 1:07.63 |
| 4 | 14 | Natasha Rogan | 01 | Millfield | 1:07.25 |
| 5 | 13 | Annalea Davison | 01 | Newcastle | 1:07.62 |
| 6 | 11 | Ceara Barber | 02 | Hillingdon | 1:07.70 |
| 7 | 9 | Caitlin Hubbard | 01 | Co Birm'ham | 1:08.16 |
| 8 | 7 | Emilia Sansome | 01 | Wycombe Dist | 1:08.70 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 16 | Madeleine Dyer | 01 | Co Sheffield | 1:06.98 |
| 2 | 18 | Debbie Cocking | 01 | Rotherham Mo | 1:06.68 |
| 3 | 20 | Ellinor Southward | 01 | Ellesmere Co | 1:06.23 |
| 4 | 22 | Lauren Hall | 99 | Co Cambridge | 1:06.12 |
| 5 | 21 | Georgina Gratton | 99 | Plymouth Lea | 1:06.15 |
| 6 | 19 | Amie Philpot | 02 | teamipswich | 1:06.35 |
| 7 | 17 | Rachel Anderson | 02 | Weston S M | 1:06.83 |
| 8 | 15 | Athena Clayson | 01 | Co Liverpool | 1:07.15 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 24 | Kiani Campbell-Grady | 99 | Co Leeds | 1:05.99 |
| 2 | 26 | Lily Boseley | 01 | Nova Cent'n | 1:05.96 |
| 3 | 28 | Hannah Kelsall | 99 | Co Liverpool | 1:05.87 |
| 4 | 30 | Kayleigh Parker | 00 | Yeovil | 1:05.81 |
| 5 | 29 | Emily Yap | 99 | TauntonDeane | 1:05.84 |
| 6 | 27 | Niamh Ritchie | 00 | Warrender Ba | 1:05.93 |
| 7 | 25 | Kathryn Henderson | 00 | Nova Cent'n | 1:05.97 |
| 8 | 23 | Martha Duley | 99 | Colchester | 1:06.01 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 32 | Rachel Wellings | 00 | Co Peterboro | 1:05.57 |
| 2 | 34 | Alexandra Waller | 01 | Heart Of Mid | 1:05.35 |
| 3 | 36 | Tazmin Pugh | 00 | Ellesmere Co | 1:04.99 |
| 4 | 38 | Tegan Drew | 00 | Plymouth Lea | 1:04.81 |
| 5 | 37 | Cassie Wild | 00 | Wirral Metro | 1:04.95 |
| 6 | 35 | Bethany Newton | 99 | Street | 1:05.33 |
| 7 | 33 | Eleanor Mitchell | 00 | Bishop Stort | 1:05.38 |
| 8 | 31 | Erin Bryce | 99 | Co Newport | 1:05.66 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 40 | Hannah Jones | 99 | Stockport Mo | 1:04.43 |
| 2 | 42 | Candice Hall | 97 | Co Leicester | 1:04.04 |
| 3 | 44 | Emma Bell | 98 | CN Mijas | 1:03.78 |
| 4 | 46 | Elisha McCrory | 97 | Derwentside | 1:03.72 |
| 5 | 45 | Hannah Burvill | 97 | Woking | 1:03.77 |
| 6 | 43 | Shauntelle Austin | 97 | Blackpool Aq | 1:04.01 |
| 7 | 41 | Laura Stephens | 99 | Plymouth Lea | 1:04.24 |
| 8 | 39 | Anna Maine | 00 | Woking | 1:04.71 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 50 | Katie Latham | 97 | Thanet Swim | 1:03.25 |
| 2 | 56 | Stephanie Reynolds | 95 | Bath Univ | 1:02.70 |
| 3 | 62 | Kirsty Simpson | 96 | Co Aberdeen | 1:02.17 |
| 4 | 68 | Lauren Quigley | 95 | Stockport Mo | 1:00.01 |
| 5 | 65 | Kathleen Dawson | 97 | Warrington W | 1:00.91 |
| 6 | 59 | Eliza Duffy | 97 | Plymouth Lea | 1:02.54 |
| 7 | 53 | Ella Bowkley | 97 | Plymouth Lea | 1:02.99 |
| 8 | 47 | Chloe Golding | 98 | Ellesmere Co | 1:03.67 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 51 | Georgia Hohmann | 94 | NottmLeander | 1:03.19 |
| 2 | 57 | Lucy Hope | 97 | Edinburgh Un | 1:02.65 |
| 3 | 63 | Rachel Lefley | 90 | Co Manch Aq | 1:01.67 |
| 4 | 69 | Elizabeth Simmonds | 91 | Bath Univ | 59.98 |
| 5 | 66 | Jessica Fullalove | 96 | Co Manch Aq | 1:00.82 |
| 6 | 60 | Brittany Horton | 98 | Co Birm'ham | 1:02.46 |
| 7 | 54 | Rebecca Sherwin | 00 | teamipswich | 1:02.97 |
| 8 | 48 | Eleanor Baldwin | 99 | Co Derby | 1:03.52 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 52 | Charlotte McKenzie | 96 | Loughboro Un | 1:03.17 |
| 2 | 58 | Harriet Cooper | 97 | Co Derby | 1:02.65 |
| 3 | 64 | Ekaterina Avramova | 91 | Ealing | 1:01.40 |
| 4 | 70 | Georgia Davies | 90 | Loughboro Un | 59.58 |
| 5 | 67 | Francesca Halsall | 90 | Loughboro Un | 1:00.77 |
| 6 | 61 | Natasha Hofton | 95 | UniOfStirl | 1:02.30 |
| 7 | 55 | Charlotte Evans | 97 | Loughboro Un | 1:02.81 |
| 8 | 49 | Karen Reid | 98 | Sth Ayrshire | 1:03.31 |