| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Izzy Bach | 17 | Kettering | 1:17.34 |
| 2 | 2 | Orla Eyton-Jones | 17 | Corby | 1:13.53 |
| 3 | 3 | Chloe Goodridge | 18 | Northampton | 1:10.91 |
| 4 | 4 | Elise Sophia Kendall | 17 | Corby | 1:08.60 |
| 5 | 5 | Evie Woolley | 17 | Northampton | 1:10.13 |
| 6 | 6 | Arabella Scotney | 18 | Rushden | 1:13.37 |
| 7 | 7 | Nyah Cotton | 17 | Corby | 1:16.06 |
| 8 | 8 | Kaitlyn Smyth | 17 | Wellingboro | 1:17.37 |