| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Marcie Blackford | 16 | Corby | 1:26.23 |
| 2 | 2 | Poppy Blowfield | 16 | Corby | 1:19.49 |
| 3 | 3 | Charlotte Ellis | 16 | Daventry | 1:15.27 |
| 4 | 4 | Orna Lett | 16 | Northampton | 1:09.22 |
| 5 | 5 | Alice Wallinger | 16 | Wellingboro | 1:12.66 |
| 6 | 6 | Maddie Walden | 16 | Northampton | 1:19.12 |
| 7 | 7 | Jasmine Reynolds | 16 | Rushden | 1:20.43 |
| 8 | 8 | Evelyn Coppa | 16 | Corby | 1:28.81 |