| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Hermione Coakley-Hines | 15 | Wirral Metro | 30.32 |
| 2 | 2 | Megan Ormiston | 15 | Stockport Mo | 30.17 |
| 3 | 3 | Ruby Sims | 16 | Stockport Mo | 29.97 |
| 4 | 4 | Jamie-Leigh Tyson | 19 | Ulverston | 29.56 |
| 5 | 5 | Maisy Smith | 20 | Stockport Mo | 29.79 |
| 6 | 6 | Honor Luckhurst | 16 | Preston | 30.05 |
| 7 | 7 | Holly Baker | 15 | Bury & Elton | 30.21 |
| 8 | 8 | Emily Wade | 17 | Leyland Barr | 30.32 |