| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Sophie Hacker | 16 | Northampton | 1:31.28 |
| 2 | 2 | Emilia Cieszczyk | 16 | Northampton | 1:27.53 |
| 3 | 3 | Grace Wingham | 16 | Kettering | 1:23.70 |
| 4 | 4 | Emily Batchelor | 16 | Kettering | 1:21.48 |
| 5 | 5 | Lilly Tappern | 16 | Corby | 1:22.53 |
| 6 | 6 | Lily Freeman | 16 | Northampton | 1:24.24 |
| 7 | 7 | Leah Hayle | 16 | Northampton | 1:27.90 |
| 8 | 8 | Kalinika Cwiklinska | 16 | Northampton | 1:32.33 |