| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Charlotte JENKINSON | 15 | Deepings | 1:15.61 |
| 2 | 2 | Isobel ALLSOP | 15 | Grantham | 1:14.30 |
| 3 | 3 | Skye HOLMES | 15 | Louth | 1:13.43 |
| 4 | 4 | Isla GRAY | 15 | Grantham | 1:11.70 |
| 5 | 5 | Emilie WEBB | 15 | Grantham | 1:13.02 |
| 6 | 6 | Sophie COOKSEY | 15 | Louth | 1:14.00 |
| 7 | 7 | Elysia SMITH | 15 | Louth | 1:15.17 |
| 8 | 8 | Pela TIAN-WRIGHT | 15 | South Lincs | 1:17.38 |