| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Ellie Baker | 13 | Brentwood | 1:14.46 |
| 2 | 2 | Kitty McNaughton | 13 | Hoddesdon | 1:13.10 |
| 3 | 3 | Olivia Wicks | 13 | Norwich Swan | 1:12.07 |
| 4 | 4 | Aimee Sanders | 13 | Dunstable | 1:09.44 |
| 5 | 5 | Matilda Sharpe | 13 | Co Norwich | 1:10.92 |
| 6 | 6 | Grace Manning | 13 | Basildon Ph | 1:12.18 |
| 7 | 7 | Cerys Wall | 13 | Co Cambridge | 1:14.44 |
| 8 | 8 | Eva Jackson | 13 | Flitwick | 1:14.62 |