| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Daniella COLES | 15 | Herne Bay | 1:23.27 |
| 1 | 2 | Jessica SHIU | 15 | Beckenham | 1:21.46 |
| 2 | 3 | Poppy TAYLOR | 15 | Thanet Swim | 1:19.95 |
| 3 | 4 | Abbie NELSON | 15 | Gwich Royals | 1:17.60 |
| 4 | 5 | Amalie SMITH | 15 | RTW Monson | 1:12.92 |
| 5 | 6 | Imogen MYLES | 15 | Sevenoaks | 1:13.16 |
| 6 | 7 | Cara NEAL | 15 | Sevenoaks | 1:19.55 |
| 7 | 8 | Mia HUGHES | 15 | Bromley | 1:21.22 |
| 8 | 9 | Tabitha BONNER | 15 | Larkfield | 1:22.78 |
| 9 | 10 | Lilly DELLER | 15 | RTW Monson | 1:23.33 |