| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Tamsin Moren | 14 | Berkhamsted | 38.79 |
| 2 | 2 | Dayna Shepperson | 14 | Potters Bar | 38.09 |
| 3 | 3 | Jasmine Brakenbury | 14 | Hitchin | 37.72 |
| 4 | 4 | Anastasia Wilkinson | 14 | Hatfield | 36.78 |
| 5 | 5 | Georgia Pritchard | 14 | Hatfield | 37.02 |
| 6 | 6 | Lucy Coia-Bell | 14 | Co St Albans | 37.78 |
| 7 | 7 | Evie Brown | 14 | Watford SC | 38.26 |
| 8 | 8 | Hannah Brooke | 14 | Co St Albans | 39.00 |