EVENT 126 Girls 14/15 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Turaya Evans | 14 | Cornwall | 1:19.17 |
| 2 | 3 | Emma Shoobert | 15 | Bedfordshire | 1:09.81 |
| 3 | 5 | Lily Wood | 15 | Warwicks | 1:06.91 |
| 4 | 7 | Matilda Meyrick | 14 | Norfolk | 1:06.10 |
| 5 | 6 | Florence Ball | 15 | Wiltshire | 1:06.75 |
| 6 | 4 | Mirabelle Waters | 15 | Berks&SBucks | 1:07.23 |
| 7 | 2 | Rebecca Wilson | 15 | Cumbria | 1:10.04 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 9 | Mia Carter | 15 | Herts | 1:05.51 |
| 1 | 11 | Lydia Smith | 15 | Lincolnshire | 1:05.20 |
| 2 | 13 | Niamh Hofland | 15 | Staffs | 1:04.86 |
| 3 | 15 | Mia Slevin | 14 | Derbyshire | 1:03.50 |
| 4 | 17 | Medi Harris | 15 | Swim Wales W | 1:02.80 |
| 5 | 16 | Charlotte Fletcher-Sta | 15 | Northants | 1:03.20 |
| 6 | 14 | Olivia Bulter | 14 | Gloucs | 1:04.63 |
| 7 | 12 | Hannah Shakeshaft | 15 | Shropshire | 1:04.93 |
| 8 | 10 | Charley Jones | 15 | Worcs | 1:05.40 |
| 9 | 8 | Anna Blakeley | 15 | Cambs | 1:05.80 |