| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Niamh KELLY | 12 | Hatfield | 40.08 |
| 2 | 2 | Ela NORTON | 12 | Cheshunt | 39.96 |
| 3 | 3 | Alice FASEY | 12 | Thetford | 39.03 |
| 4 | 4 | Charlotte ABRAMSON | 12 | UEA Norwich | 38.07 |
| 5 | 5 | Ciara WOOKEY | 12 | Colchester | 38.92 |
| 6 | 6 | Jessica MUNFORD | 12 | Norwich Swan | 39.24 |
| 7 | 7 | Isabella CHAPMAN | 12 | Harpenden | 40.03 |
| 8 | 8 | Shannon STUBBS | 12 | UEA Norwich | 40.64 |