| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Clara WATSON-FLOWERS | 13 | St Felix Sch | 1:10.57 |
| 2 | 2 | Isabella HOBSON-CORBET | 14 | Bassetlaw SS | 1:10.65 |
| 3 | 3 | Alicia CLARK | 13 | Bassetlaw SS | 1:09.81 |
| 4 | 4 | Caitlin EBBAGE | 14 | Tonbridge | 1:03.05 |
| 5 | 5 | Bethan ENDICOTT | 14 | St Ives | 1:08.16 |
| 6 | 6 | Amelia STEVENSON | 14 | Bassetlaw SS | 1:08.88 |
| 7 | 7 | Daisy MOXHAM | 14 | Co Cambridge | 1:12.25 |
| 8 | 8 | Ruby STEPHENSON | 12 | Newport Pag | 1:11.58 |