| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | S Monera-Cabarique | 17 | Poole | 1:23.72 |
| 2 | 2 | Aimie Quarrie | 18 | Poole | 1:19.95 |
| 3 | 3 | Emily McWilliam | 17 | Seagulls SC | 1:19.48 |
| 4 | 4 | Amy Brown | 18 | S Bournem'th | 1:14.78 |
| 5 | 5 | Mackenzi Ashford | 17 | S Bournem'th | 1:16.77 |
| 6 | 6 | Lucy Steele | 18 | Poole | 1:19.66 |
| 7 | 7 | Claudia Ashford | 18 | S Bournem'th | 1:22.32 |
| 8 | 8 | Erin Horn | 18 | West Dorset | 1:25.38 |