| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Megan Cotton | 14 | Repton | 40.31 |
| 2 | 2 | Lily-Grace Belfield | 14 | Chesterfield | 39.57 |
| 3 | 3 | Lily Mae Glover | 14 | Repton | 37.68 |
| 4 | 4 | Evelyn Norvock | 14 | Dronfield | 35.99 |
| 5 | 5 | Maisie Wilkes | 14 | Chesterfield | 37.10 |
| 6 | 6 | Isabel Plummer | 14 | Long Eaton | 38.84 |
| 7 | 7 | Anwen Williams | 14 | Buxton | 40.08 |
| 8 | 8 | Ava Cranfield | 14 | Eckington | 40.96 |