| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Rhearna MASON | 15 | Biggleswade | 30.41 |
| 2 | 2 | Lillia THOMPSON | 15 | Flitwick | 30.26 |
| 3 | 3 | Ellie MATTHEWS | 15 | Putteridge | 29.51 |
| 4 | 4 | Isabel WAINWRIGHT | 15 | Modernian | 28.21 |
| 5 | 5 | Orla KEAVENEY | 15 | Modernian | 29.32 |
| 6 | 6 | Chiara ROGERS | 15 | Team Luton | 30.21 |
| 7 | 7 | Rebecca KNIBB | 15 | Linslade | 30.38 |
| 8 | 8 | Katherine CHEESERIGHT | 15 | Biggleswade | 30.44 |