| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Lowri Whittaker | 12 | Preston | 42.84 |
| 2 | 2 | Carey Sullivan | 12 | Co Manch Aq | 41.89 |
| 3 | 3 | Bonnie Carruthers | 12 | Ramsbottom | 41.66 |
| 4 | 4 | Marley-Rose Garrett | 12 | Bootle | 41.69 |
| 5 | 5 | Megan Hacking | 12 | Gt Harwood | 42.23 |
| 6 | 6 | Chloe Whittington | 12 | Preston | 42.91 |