| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Erin McLean | 13 | Poole | 43.50 |
| 2 | 2 | Isabella Garavini | 13 | Poole | 43.14 |
| 3 | 3 | Zoe Russell | 13 | Seagulls SC | 42.29 |
| 4 | 4 | Roberta Bryson | 13 | Poole | 37.37 |
| 5 | 5 | Sadie Robinson | 13 | West Dorset | 37.45 |
| 6 | 6 | Blossom Munro | 13 | S Bournem'th | 42.91 |
| 7 | 7 | Holly Symes | 13 | Bridport Bar | 43.25 |
| 8 | 8 | Ruby Hindell | 13 | S Bournem'th | 43.54 |