| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Molly FORDYCE | 17 | Faversham | 1:20.68 |
| 1 | 2 | Heidi WALKIN | 17 | Thanet Swim | 1:19.49 |
| 2 | 3 | Chloe DESIDERIO | 18 | Dover Life | 1:18.59 |
| 3 | 4 | Lan LE | 18 | Bexley | 1:16.87 |
| 4 | 5 | Scarlett DAVIE | 17 | Sevenoaks | 1:14.40 |
| 5 | 6 | Emilia OLIVER | 17 | RTW Monson | 1:15.62 |
| 6 | 7 | Natasha GREER | 18 | Gwich Royals | 1:18.32 |
| 7 | 8 | Molly LOWN | 20 | Dover Life | 1:19.05 |
| 8 | 9 | Louisa POLLARD | 17 | Ashford Sch | 1:19.56 |
| 9 | 10 | Isobelle DILL-RUSSELL | 18 | Dover Life | 1:21.41 |