| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Amy TOPPING | 16 | Thanet Swim | 1:22.04 |
| 2 | 2 | Amber PIPER | 16 | Thanet Swim | 1:20.93 |
| 3 | 3 | Zoe EVERETT | 16 | Gwich Royals | 1:20.29 |
| 4 | 4 | Hannah LEWIS | 16 | Bromley | 1:19.45 |
| 5 | 5 | Lilly-Marie DERRY | 16 | Sevenoaks | 1:19.78 |
| 6 | 6 | Martha ROBERTS | 16 | Sevenoaks | 1:20.64 |
| 7 | 7 | Ella-Louise DOYLE | 16 | Gwich Royals | 1:21.46 |
| 8 | 8 | Erin O'HARA | 16 | Saxon Crown | 1:23.68 |