| Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Eliza Humphrey | 19 | SB11 | Northampton | 1:34.49 |
| 2 | 2 | Ellie Parkes | 18 | Co Lincoln P | 1:17.10 | |
| 3 | 3 | Cira Fletcher | 26 | Nova Cent'n | 1:15.24 | |
| 4 | 4 | Lily Jackson-Oates | 19 | Nova Cent'n | 1:12.69 | |
| 5 | 5 | Mabel Walker | 17 | Repton | 1:13.64 | |
| 6 | 6 | Olivia Crowe | 18 | Melton M'bry | 1:15.77 | |
| 7 | 7 | Scarlett Humphrey | 19 | SB11 | Northampton | 1:30.49 |