| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Zoe Simmonds | 12 | Dronfield | 44.03 |
| 2 | 2 | Madeleine Heron | 12 | Derby Excel | 43.32 |
| 3 | 3 | Ada Moorhouse | 12 | Derby Excel | 41.23 |
| 4 | 4 | Keira Parker | 12 | Derby Excel | 40.55 |
| 5 | 5 | Emily Edwards | 12 | Repton | 41.21 |
| 6 | 6 | Ruby Hill | 12 | Ilkeston | 42.87 |
| 7 | 7 | Amelia Sheil | 12 | Derby Excel | 43.61 |
| 8 | 8 | Ava Carter | 12 | BelperMarlin | 44.07 |