| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Hollie-Ann CROOK | 12 | Grantham | 1:24.54 |
| 2 | 2 | Ella Bele KHAMA | 12 | Grantham | 1:23.14 |
| 3 | 3 | Aoife HICKEY | 12 | Deepings | 1:20.99 |
| 4 | 4 | Margot MARKS | 12 | Lincoln Vulc | 1:16.93 |
| 5 | 5 | Isobel DELDERFIELD | 12 | Co Lincoln P | 1:17.45 |
| 6 | 6 | Eva MADDISON | 12 | Co Lincoln P | 1:22.78 |
| 7 | 7 | Caitlin BOWLES | 12 | Gainsborough | 1:23.50 |
| 8 | 8 | Honey FLOWER | 12 | Grantham | 1:26.13 |