| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Madeleine Crompton | 17 | Stockport Mo | 58.53 |
| 1 | 2 | Madeline Exton | 18 | Woking | 58.41 |
| 2 | 3 | Rebecca Sherwin | 17 | teamipswich | 58.26 |
| 3 | 4 | Darcy Deakin | 18 | Co Sheffield | 57.43 |
| 4 | 5 | Georgia Coates | 18 | Co Leeds | 56.94 |
| 5 | 6 | Amy Grant | 18 | Co Derby | 57.12 |
| 6 | 7 | Hannah Featherstone | 18 | Sedgefield | 57.85 |
| 7 | 8 | Amy Godsave | 18 | London Aquat | 58.36 |
| 8 | 9 | Anita M'Cartney | 18 | Plymouth Lea | 58.48 |
| 9 | 10 | Martha Duley | 18 | Colchester | 58.74 |