| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Chloe Pow | 18 | Rushden | 1:15.86 |
| 2 | 2 | Ella Newton | 17 | Corby | 1:13.63 |
| 3 | 3 | Alexa Parker | 17 | Corby | 1:12.08 |
| 4 | 4 | Betsy Wizard | 23 | Northampton | 1:00.55 |
| 5 | 5 | Rowan White | 18 | Rushden | 1:10.82 |
| 6 | 6 | Isabel Sharp | 20 | Northampton | 1:12.63 |
| 7 | 7 | Emily Denton | 17 | Northampton | 1:13.64 |
| 8 | 8 | Gracie Ridout | 21 | Wellingboro | 1:16.56 |