| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Elodie Pearcey | 15 | Repton | 1:20.81 |
| 2 | 2 | Aurelia Wawrzyniewicz | 15 | Nova Cent'n | 1:20.55 |
| 3 | 3 | Sigourney Bolton | 15 | South Lincs | 1:19.58 |
| 4 | 4 | Amelia Denham | 15 | Chesterfield | 1:16.70 |
| 5 | 5 | Sophie Statham-Gill | 15 | Co Leicester | 1:16.86 |
| 6 | 6 | Isabella Jones | 15 | Repton | 1:19.60 |
| 7 | 7 | Alice-Mae Downs | 15 | Co Lincoln P | 1:20.69 |
| 8 | 8 | Poppy Westmorland | 15 | Nova Cent'n | 1:21.21 |