EVENT 207 Female 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Rose Webb | 13 | S6 | Northampton | 1:48.40 |
| 2 | 3 | Scarlett Humphrey | 19 | S11 | Northampton | 1:20.20 |
| 3 | 5 | Anna Clarke | 15 | | Co Leicester | 1:10.44 |
| 4 | 7 | Charlotte Byron | 16 | | Melton M'bry | 1:10.36 |
| 5 | 6 | Isabelle McCorkell | 16 | | Gainsborough | 1:10.38 |
| 6 | 4 | Amber Haycock | 17 | S10 | Northampton | 1:11.60 |
| 7 | 2 | Eliza Humphrey | 19 | S11 | Northampton | 1:25.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 9 | Maisie Moore | 14 | | Repton | 1:10.17 |
| 2 | 11 | Millicent Goldfinch | 14 | | Loughborough | 1:10.03 |
| 3 | 13 | Maisie Matthews | 13 | | Louth | 1:09.73 |
| 4 | 15 | Olivia Graham | 13 | | Repton | 1:09.55 |
| 5 | 14 | Hebe Spooner | 16 | | Dronfield | 1:09.56 |
| 6 | 12 | Dorothy Plumpton | 15 | | Co Leicester | 1:09.87 |
| 7 | 10 | Jennifer Walker | 16 | | Bassetlaw SS | 1:10.11 |
| 8 | 8 | Taliah Coutts | 16 | | Louth | 1:10.31 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 17 | Miley Aram | 15 | | Derby Excel | 1:09.20 |
| 2 | 19 | Amelie Ratliff | 14 | | Derby Excel | 1:09.00 |
| 3 | 21 | Isabelle Cameron | 13 | | Repton | 1:08.60 |
| 4 | 23 | Sian Hedley | 13 | | Nova Cent'n | 1:08.23 |
| 5 | 22 | Kyra Winter | 13 | | Chesterfield | 1:08.49 |
| 6 | 20 | M Simpson-Dawson | 14 | | Repton | 1:08.79 |
| 7 | 18 | Isabelle Joyner | 15 | | Daventry | 1:09.10 |
| 8 | 16 | Alice Kirkpatrick | 16 | | OadbyWigston | 1:09.23 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 25 | Zoe Ellis | 15 | | Leic Sharks | 1:08.08 |
| 2 | 27 | Julia Jozwiak | 16 | | Leic Sharks | 1:07.87 |
| 3 | 29 | Millie King | 16 | | Derby Excel | 1:07.48 |
| 4 | 31 | Janie Finch | 14 | | Co Leicester | 1:07.12 |
| 5 | 30 | Annabelle Blackbird | 14 | | Repton | 1:07.41 |
| 6 | 28 | Jessica Oxley | 15 | | Co Leicester | 1:07.51 |
| 7 | 26 | Sarah Dew | 17 | | Leic Sharks | 1:08.04 |
| 8 | 24 | Eleanor Bevan | 18 | | Derby Excel | 1:08.18 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 35 | Olivia Hann | 18 | | Repton | 1:06.40 |
| 2 | 41 | Erin Gent | 16 | | Repton | 1:04.50 |
| 3 | 47 | Annabelle Wilkinson | 19 | | Chesterfield | 1:01.85 |
| 4 | 53 | Lauren Cox | 23 | | Lboro Uni | 58.20 |
| 5 | 50 | Annabel Crees | 17 | | Repton | 1:01.01 |
| 6 | 44 | Connie Davies | 18 | | Uni of Nott | 1:03.57 |
| 7 | 38 | Alexandra Bulat | 18 | | Co Lincoln P | 1:05.25 |
| 8 | 32 | Amelia Denham | 15 | | Chesterfield | 1:07.09 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 36 | Isabel Wright | 18 | | Long Eaton | 1:06.39 |
| 2 | 42 | Rachel Webb | 17 | | Co Lincoln P | 1:04.29 |
| 3 | 48 | Fenella Wooddisse | 16 | | Repton | 1:01.30 |
| 4 | 54 | Georgina Pryor | 26 | | Derby Excel | 58.02 |
| 5 | 51 | Abbie Wood | 25 | | Lboro Uni | 1:00.00 |
| 6 | 45 | Madeleine Soper | 21 | | Uni of Nott | 1:02.81 |
| 7 | 39 | Lilli-Rose Carr | 15 | | Nova Cent'n | 1:05.00 |
| 8 | 33 | Megan Neave | 21 | S14 | Repton | 1:06.70 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 37 | Abbey Turnbull | 15 | | CarltonForum | 1:06.02 |
| 2 | 43 | Darcie Platts | 16 | | Co Leicester | 1:03.81 |
| 3 | 49 | Anna Tyers | 16 | | Derby Excel | 1:01.07 |
| 4 | 55 | Medi Harris | 22 | | Lboro Uni | 56.66 |
| 5 | 52 | Honey Osrin | 21 | | Lboro Uni | 59.02 |
| 6 | 46 | Isabelle Leigh | 20 | | Uni of Nott | 1:02.57 |
| 7 | 40 | Emilia Cieszczyk | 17 | | Northampton | 1:04.51 |
| 8 | 34 | Grace Wingham | 17 | | Corby | 1:06.68 |