| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Lucy ABBOTT | 12 | Grantham | 1:39.47 |
| 2 | 2 | Isla LORMOR | 12 | Gainsborough | 1:38.51 |
| 3 | 3 | Molly CRAUGHAN | 12 | Lincoln Vulc | 1:35.83 |
| 4 | 4 | Freya SHARPE | 12 | Lincoln Vulc | 1:35.19 |
| 5 | 5 | Emily TALKES | 12 | Lincoln Vulc | 1:35.48 |
| 6 | 6 | Annie WEBSTER | 12 | Grantham | 1:36.58 |
| 7 | 7 | Evie NEWMAN | 12 | Lincoln Vulc | 1:38.54 |
| 8 | 8 | Juliette KING | 12 | Grantham | 1:40.65 |