| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Kalinika Cwiklinska | 16 | Northampton | 41.80 |
| 2 | 2 | Emilia Cieszczyk | 16 | Northampton | 39.98 |
| 3 | 3 | Lilly Tappern | 16 | Corby | 38.14 |
| 4 | 4 | Grace Wingham | 16 | Kettering | 36.82 |
| 5 | 5 | Emily Batchelor | 16 | Kettering | 37.86 |
| 6 | 6 | Leah Hayle | 16 | Northampton | 38.51 |
| 7 | 7 | Matilda Scotney | 16 | Rushden | 40.49 |
| 8 | 8 | Annabel Lloyd | 16 | Northampton | 41.83 |