| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Emily Surminski | 17 | Brompton | 1:14.11 |
| 1 | 2 | Maia Hall | 17 | Ellesmere Co | 1:13.44 |
| 2 | 3 | Lily Booker | 18 | Millfield | 1:12.17 |
| 3 | 4 | Rebecca Clynes | 17 | Co Leeds | 1:10.34 |
| 4 | 5 | Kayla Van Der Merwe | 17 | Winchester | 1:08.76 |
| 5 | 6 | Katie Robertson | 18 | Sth Ayrshire | 1:09.95 |
| 6 | 7 | Phoebe Kelman-Johns | 17 | S Bournem'th | 1:12.17 |
| 7 | 8 | Abigail Hurst | 18 | Millfield | 1:13.19 |
| 8 | 9 | Georgia Hytner | 17 | Wirral Metro | 1:13.96 |
| 9 | 10 | Molly Lee | 18 | West Norfolk | 1:14.18 |