EVENT 602 Women Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 2 | Mwaba Mkwasa | 17 | S8 | Norwich Swan | 1:36.97 |
| 2 | 4 | Abigail Wickens | 15 | S8 | Flitwick | 1:34.30 |
| 3 | 6 | Lucy Calver | 14 | | Putteridge | 1:09.84 |
| 4 | 8 | Bethany Hamer | 15 | | Linslade | 1:09.73 |
| 5 | 7 | Emilia Johnson | 13 | | St Felix Sch | 1:09.80 |
| 6 | 5 | Katerina Di Maria | 14 | | Co Norwich | 1:09.90 |
| 7 | 3 | Lily Herring | 14 | S10 | Norwich Swan | 1:36.20 |
| 8 | 1 | Ida Corcoran | 13 | S9 | Flitwick | 1:45.62 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 10 | Sophie Holliss | 14 | | Co St Albans | 1:09.48 |
| 2 | 12 | Adrija Raudonyte | 14 | | Newmarket | 1:09.27 |
| 3 | 14 | Danielle Rulton | 24 | | Halstead | 1:09.19 |
| 4 | 16 | Sophie Green | 15 | | Hatfield | 1:08.98 |
| 5 | 15 | Alexandra Nurney | 12 | | Hatfield | 1:09.10 |
| 6 | 13 | Phoebe Matthews | 15 | | Hatfield | 1:09.22 |
| 7 | 11 | Bryony Edgings | 17 | | Thurrock | 1:09.45 |
| 8 | 9 | Chloe Armstrong | 15 | | teamipswich | 1:09.66 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 18 | Clementine Lovell | 13 | | teamipswich | 1:08.69 |
| 2 | 20 | Charlotte Smith | 15 | | Norwich Swan | 1:08.56 |
| 3 | 22 | Clemmie Butler Brown | 20 | | Co Cambridge | 1:08.33 |
| 4 | 24 | Camille Vannier | 15 | | Hatfield | 1:08.28 |
| 5 | 23 | Emily Pitcher | 14 | | Norwich Swan | 1:08.31 |
| 6 | 21 | Rebecca Smith | 19 | | Norwich Swan | 1:08.40 |
| 7 | 19 | Emily Cutting | 17 | | West Suffolk | 1:08.65 |
| 8 | 17 | Jasmine Coleman | 16 | | Norwich Swan | 1:08.72 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 28 | Eloise Cole | 14 | | Modernian | 1:07.08 |
| 2 | 34 | Isobel Mather | 15 | | Co Cambridge | 1:06.65 |
| 3 | 40 | Megan Pye | 20 | | Co Norwich | 1:05.07 |
| 4 | 46 | Amara Addison | 15 | | Norwich Swan | 1:02.71 |
| 5 | 43 | Georgia Holgate | 15 | | Co Cambridge | 1:03.82 |
| 6 | 37 | Erin Currie | 14 | | Hatfield | 1:05.92 |
| 7 | 31 | Jessica-Jane Applegate | 26 | S14 | Co Norwich | 1:06.70 |
| 8 | 25 | Isla Fulluck-Holmes | 15 | | Co Peterboro | 1:07.85 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 29 | Alexa Mann | 16 | | Chelmsford | 1:07.06 |
| 2 | 35 | Daisy Manning | 14 | | Basildon Ph | 1:06.37 |
| 3 | 41 | Evangeline Pierce | 15 | | Basildon Ph | 1:04.76 |
| 4 | 47 | Charley Joyce | 17 | | Epping For't | 1:02.70 |
| 5 | 44 | Sophie O'Keeffe | 20 | | Co Cambridge | 1:03.09 |
| 6 | 38 | Vanesa Cimermanova | 14 | | Co Peterboro | 1:05.60 |
| 7 | 32 | Beth Young | 16 | | teamipswich | 1:06.68 |
| 8 | 26 | Connie Davies | 16 | | Deben | 1:07.20 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 30 | Ella Coombes | 14 | | Basildon Ph | 1:06.95 |
| 2 | 36 | Jessica Keogh | 18 | | Hatfield | 1:06.33 |
| 3 | 42 | Megan Donovan | 15 | | Co Peterboro | 1:04.62 |
| 4 | 48 | Hannah Willis | 17 | | Co Peterboro | 1:02.45 |
| 5 | 45 | Niamh James | 21 | | Bishop Stort | 1:02.90 |
| 6 | 39 | Charlotte Williams | 16 | | Hatfield | 1:05.31 |
| 7 | 33 | Abigail Crawley | 17 | | teamipswich | 1:06.67 |
| 8 | 27 | Georgina Munday | 18 | | Co Norwich | 1:07.20 |