| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Sophia Sugden | 15 | Co Manch Aq | 1:10.01 |
| 2 | 2 | Letian Wu | 16 | Trafford Met | 1:09.44 |
| 3 | 3 | Eleanor Armstrong | 15 | Trafford Met | 1:08.81 |
| 4 | 4 | Scarlett Robinson | 17 | Ulverston | 1:08.70 |
| 5 | 5 | Yarah Ghazal | 14 | Lancaster | 1:08.72 |
| 6 | 6 | Emily Wade | 17 | Leyland Barr | 1:09.22 |
| 7 | 7 | Laila Lawrenson | 16 | Preston | 1:09.46 |
| 8 | 8 | Aimee Coy | 17 | Co Liverpool | 1:10.16 |