| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Charlotte CIUBERKYTE | 06 | South Lincs Competitive SC | 1:23.97 |
| 2 | 2 | Grace TURNER | 07 | Grantham SC | 1:22.14 |
| 3 | 3 | Madeleine MACKAY | 98 | Lincoln Vulcans SC | 1:18.29 |
| 4 | 4 | Katie FOUNDS | 06 | City of Linc Pentaqua SC | 1:14.31 |
| 5 | 5 | Chloe HOPKINSON | 05 | Grantham SC | 1:17.59 |
| 6 | 6 | Tiegan GRAY | 07 | Gainsborough Dolphins SC | 1:19.99 |
| 7 | 7 | Francesca HALLAM-STOTT | 07 | Grantham SC | 1:23.20 |
| 8 | 8 | Daniela BRINGEMAN | 07 | South Lincs Competitive SC | 1:23.97 |