| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Isabella Graham | 13 | West Dorset | 1:21.01 |
| 2 | 2 | Sadie Robinson | 13 | West Dorset | 1:16.94 |
| 3 | 3 | Roberta Bryson | 13 | Poole | 1:15.11 |
| 4 | 4 | Ruby Hindell | 13 | S Bournem'th | 1:13.04 |
| 5 | 5 | Lexie Taylor | 13 | Wareham | 1:14.43 |
| 6 | 6 | Erin McLean | 13 | Poole | 1:15.76 |
| 7 | 7 | Louise Campbell | 13 | Poole | 1:19.75 |
| 8 | 8 | Beatrice Richman | 13 | Poole | 1:21.13 |