| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Milana Misurova | 17 | Rushden | 1:04.67 |
| 2 | 2 | Rowan White | 18 | Rushden | 1:04.46 |
| 3 | 3 | Ella Newton | 17 | Corby | 1:04.16 |
| 4 | 4 | Betsy Wizard | 23 | Northampton | 59.55 |
| 5 | 5 | Grace Wingham | 19 | Corby | 1:01.13 |
| 6 | 6 | Faye Eyton-Jones | 17 | Corby | 1:04.19 |
| 7 | 7 | Chloe Pow | 18 | Rushden | 1:04.53 |
| 8 | 8 | Phebe Adams | 17 | Northampton | 1:04.75 |