EVENT 118 Girls 12/13 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Bethan Evans | 13 | Swim Wales W | 1:11.96 |
| 1 | 4 | Bobbi Harper | 13 | Northants | 1:10.31 |
| 2 | 6 | Amelia Bell | 13 | Berks&SBucks | 1:09.27 |
| 3 | 8 | Sophie Lander | 13 | Suffolk | 1:08.86 |
| 4 | 10 | Isobel Bryant | 13 | Devon | 1:08.59 |
| 5 | 9 | Alicia Peinado | 13 | Surrey | 1:08.85 |
| 6 | 7 | Lucy Hitchin | 13 | Leics | 1:09.16 |
| 7 | 5 | Leah Evans | 13 | Somerset | 1:10.04 |
| 8 | 3 | Ciara Taylor | 13 | Cambs | 1:11.95 |
| 9 | 1 | Ellie Brown | 13 | Dorset | 1:14.01 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Georgiana Bot | 13 | Lancashire | 1:07.15 |
| 1 | 14 | Isabel Iley | 13 | Essex | 1:06.97 |
| 2 | 16 | Cerys Rosser | 13 | Swim Wales E | 1:06.33 |
| 3 | 18 | Rachel Saunders | 13 | Scot East | 1:05.35 |
| 4 | 20 | Leah Whittaker | 13 | Middlesex | 1:04.11 |
| 5 | 19 | Caitlin Ebbage | 13 | Kent | 1:04.49 |
| 6 | 17 | Libby Freeman | 12 | N & Durham | 1:06.00 |
| 7 | 15 | Annabelle Wilkinson | 13 | Yorkshire | 1:06.47 |
| 8 | 13 | Sophie Govan | 13 | Ox & N Bucks | 1:07.11 |
| 9 | 11 | Saskia Wade | 13 | Scot West | 1:08.23 |