| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Megan James | 13 | Wellingboro | 39.83 |
| 2 | 2 | Emma Chamberlain | 13 | Wellingboro | 39.11 |
| 3 | 3 | Everly Favier | 13 | Wellingboro | 37.46 |
| 4 | 4 | Vida Coulson | 13 | Northampton | 36.00 |
| 5 | 5 | Riley Weber | 13 | Corby | 36.81 |
| 6 | 6 | Poppy Okeife | 13 | Daventry | 38.31 |
| 7 | 7 | Eleni Williams | 13 | Corby | 39.23 |
| 8 | 8 | Emma Chirila | 13 | Kettering | 39.97 |