| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Anna Morgan | 15 | Hamilton UAE | 1:05.42 |
| 1 | 2 | Ella Chown | 15 | S Bournem'th | 1:05.05 |
| 2 | 3 | Lana Broekhoven | 15 | Plymouth Lea | 1:05.02 |
| 3 | 4 | Madison Kemp | 20 | Plymouth Lea | 1:04.87 |
| 4 | 5 | Kate Mills | 20 | Loughboro Un | 1:04.59 |
| 5 | 6 | Tegan Drew | 18 | Plymouth Lea | 1:04.81 |
| 6 | 7 | Daisy Anderson | 17 | Thanet Swim | 1:04.91 |
| 7 | 8 | Lauren Watt | 17 | Newmarket | 1:05.04 |
| 8 | 9 | Daniela Cogswell | 15 | Hamilton UAE | 1:05.19 |