| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Mackenzie Wainwright | 15 | Northampton | 1:23.36 |
| 2 | 2 | Codie Lowe | 15 | Corby | 1:20.45 |
| 3 | 3 | Lilly Kowal | 15 | Wellingboro | 1:17.75 |
| 4 | 4 | Beth Rebhan | 15 | Corby | 1:14.83 |
| 5 | 5 | Holly Coleman | 15 | Corby | 1:14.97 |
| 6 | 6 | Edith Kaberry | 15 | Corby | 1:18.70 |
| 7 | 7 | Kennedy McHugh | 15 | Corby | 1:21.92 |
| 8 | 8 | Emma Affleck | 15 | Kettering | 1:23.92 |