| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Tabitha Buchan-Moore | 11 | West Dorset | 41.60 |
| 3 | 3 | Poppy Collins | 11 | Poole | 39.44 |
| 4 | 4 | Layla Wareing | 11 | West Dorset | 37.55 |
| 5 | 5 | Daria Korotkova | 11 | Poole | 38.11 |
| 6 | 6 | Amelia Newsum | 11 | S Bournem'th | 40.62 |
| 7 | 7 | Heather Sayers | 11 | Weymouth | 42.11 |