| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | 323 | Niamh Rushton | Nene Valley Harriers | U17 | 43.72 | |||
| 2 | 4 | 418 | Emily Swain | The HAWCS | U17 | 44.89 | |||
| 3 | 6 | 416 | Alexa Forster | The HAWCS | U17 | 45.33 | |||
| 4 | 3 | 311 | Erin Hughes | Medway and Maidstone A.C. | U17 | 45.65 | |||
| 5 | 7 | 338 | Chloe Waterhouse | Newham and Essex Beagles A.C. | U17 | 45.75 | |||
| 6 | 5 | 177 | Elsie Leiper | Dacorum and Tring A.C. | U17 | 46.33 | |||
| 1 | 440 | Freya Ridge | Tonbridge A.C. | U17 | DNS | ||||
| 2 | 164 | Isabelle Brydon | City Of Portsmouth A.C. | U17 | DNS |
