| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Grace Cullen | 13 | Corby | 1:29.80 |
| 2 | 2 | Kaia Dawson | 13 | Corby | 1:25.41 |
| 3 | 3 | Maddie Taylor | 13 | Corby | 1:22.64 |
| 4 | 4 | Mia Allan | 13 | Northampton | 1:21.38 |
| 5 | 5 | Maddie Walden | 13 | Northampton | 1:22.03 |
| 6 | 6 | Isla Robertson | 13 | Northampton | 1:24.00 |
| 7 | 7 | Hannah Marsden | 13 | Daventry | 1:28.89 |
| 8 | 8 | Nika Buhharova | 13 | Corby | 1:29.94 |