| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Zoe Steele | 16 | Poole | 1:14.89 |
| 2 | 2 | Tilly McHugh | 16 | Poole | 1:13.46 |
| 3 | 3 | Lauren Osgood | 16 | West Dorset | 1:12.13 |
| 4 | 4 | Betsy Vavasour | 16 | Poole | 1:09.36 |
| 5 | 5 | Amelia Chaffey | 16 | West Dorset | 1:10.68 |
| 6 | 6 | Grace Chaffey | 16 | West Dorset | 1:12.32 |
| 7 | 7 | Millie Long | 16 | S Bournem'th | 1:14.71 |
| 8 | 8 | Isabel Ness | 16 | S Bournem'th | 1:16.06 |