| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Erin ARCHER | 11 | City of Linc Pentaqua SC | 1:26.54 |
| 2 | 2 | Suzanna BURKE | 11 | Louth Dolphins SC | 1:25.37 |
| 3 | 3 | Amy PALMER | 11 | City of Linc Pentaqua SC | 1:19.26 |
| 4 | 4 | Kitty LAMB | 11 | South Lincs Competitive SC | 1:14.29 |
| 5 | 5 | Maisie MATTHEWS | 11 | Louth Dolphins SC | 1:15.09 |
| 6 | 6 | Lucy WILLATTS | 11 | Grantham SC | 1:23.46 |
| 7 | 7 | Ellena HOWITT | 11 | Grantham SC | 1:25.58 |
| 8 | 8 | Sophie FOSTER | 11 | Louth Dolphins SC | 1:30.98 |