| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Amelia Malinowska | 13 | Wellingboro | 39.46 |
| 2 | 2 | Maya Almohammed | 13 | NottmLeander | 39.15 |
| 3 | 3 | Lily Mae Glover | 13 | Repton | 38.77 |
| 4 | 4 | Maisie-Leigh Simpson-D | 13 | Co Leicester | 38.19 |
| 5 | 5 | Payton Marski | 13 | Co Leicester | 38.30 |
| 6 | 6 | Emilie Webb | 13 | Grantham | 39.09 |
| 7 | 7 | Alice Wallinger | 13 | Wellingboro | 39.29 |
| 8 | 8 | Isla Gray | 13 | Grantham | 39.68 |