| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Amelia ASHTON | 14 | Sevenoaks | 1:23.17 |
| 1 | 2 | Emma WHIFFIN | 14 | Bexley | 1:22.06 |
| 2 | 3 | Olivia COOLEY | 14 | RTW Monson | 1:21.61 |
| 3 | 4 | Zoe TOLLIT | 14 | RTW Monson | 1:19.82 |
| 4 | 5 | Josephine LAWN | 14 | Bromley | 1:15.67 |
| 5 | 6 | Lowri WILLIAMS | 14 | RTW Monson | 1:18.79 |
| 6 | 7 | Isla ROSS | 14 | Herne Bay | 1:20.00 |
| 7 | 8 | Olivia NORLEY | 14 | RTW Monson | 1:21.76 |
| 8 | 9 | Lola BOWRA | 14 | Sevenoaks | 1:22.40 |
| 9 | 10 | Mae DAVIES | 14 | RTW Monson | 1:23.64 |