| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Marcie Blackford | 16 | Corby | 35.04 |
| 2 | 2 | Jasmine Reynolds | 16 | Rushden | 34.47 |
| 3 | 3 | Charlotte Ellis | 16 | Daventry | 33.34 |
| 4 | 4 | Poppy Blowfield | 16 | Corby | 31.93 |
| 5 | 5 | Alice Wallinger | 16 | Wellingboro | 32.21 |
| 6 | 6 | Maddie Walden | 16 | Northampton | 34.19 |
| 7 | 7 | Imogen Burger | 16 | Corby | 34.75 |
| 8 | 8 | Kaia Dawson | 16 | Corby | 35.73 |