| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Lucy WILLATTS | 14 | Grantham | 1:17.51 |
| 2 | 2 | Amy TAYLOR | 14 | Grantham | 1:14.90 |
| 3 | 3 | Sophie ALLISTON | 14 | Deepings | 1:13.43 |
| 4 | 4 | Maisie MATTHEWS | 14 | Louth | 1:10.80 |
| 5 | 5 | Suzanna BURKE | 14 | Louth | 1:13.14 |
| 6 | 6 | Annabelle JAY | 14 | Grantham | 1:14.51 |
| 7 | 7 | Ellena HOWITT | 14 | Grantham | 1:17.29 |
| 8 | 8 | Amelia BIRD | 14 | Skegness | 1:18.43 |