| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Rachel Leng | 13 | Loftus Dol | 1:23.10 |
| 2 | 2 | Evie Dilley | 12 | Middlesboro | 1:21.20 |
| 3 | 3 | Bethan Palfreeman | 13 | Middlesboro | 1:18.69 |
| 4 | 4 | Hannah Redshaw | 12 | Middlesboro | 1:21.13 |
| 5 | 5 | Megan Cairns | 13 | Middlesboro | 1:21.55 |
| 6 | 6 | Eleanor Harvey | 14 | Billingham | 1:25.47 |