| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Katie MALONEY | 27 | Louth | 1:14.45 |
| 2 | 2 | Grace TURNER | 17 | Grantham | 1:11.93 |
| 3 | 3 | Ellie PARKES | 18 | Co Lincoln P | 1:10.68 |
| 4 | 4 | Ellisha COOKSON | 20 | South Lincs | 1:08.44 |
| 5 | 5 | Alexandra BULAT | 18 | Co Lincoln P | 1:09.15 |
| 6 | 6 | Beatrice FINCH | 18 | South Lincs | 1:10.76 |
| 7 | 7 | Sophie MARSHALL | 19 | Co Lincoln P | 1:14.25 |
| 8 | 8 | Hannah BERWICK | 25 | Grantham | 1:16.14 |