| Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Amber Haycock | 16 | S10 | Rushden | 1:18.62 |
| 2 | 2 | Lilly Tappern | 16 | Corby | 1:15.50 | |
| 3 | 3 | Grace Wingham | 16 | Kettering | 1:12.92 | |
| 4 | 4 | Emilia Cieszczyk | 16 | Northampton | 1:09.38 | |
| 5 | 5 | Lily Freeman | 16 | Northampton | 1:12.54 | |
| 6 | 6 | Emma McLean | 16 | Rushden | 1:14.68 | |
| 7 | 7 | Mia Matthews | 16 | Northampton | 1:16.89 | |
| 8 | 8 | Imogen Morlidge | 16 | Wellingboro | 1:19.93 | |