| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | 249 | Anna Babis | Windsor Slough Eton and Hounslow A.C. | U15 | 42.21 | |||
| 2 | 3 | 172 | Lucy Atkins | Kingston A.C. and Poly Harriers | U17 | 42.21 | |||
| 3 | 4 | 237 | Isabella Fassnidge | Tonbridge A.C. | U17 | 43.09 | |||
| 4 | 6 | 133 | Orla Edwards | Crawley A.C. | U15 | 43.49 | |||
| 5 | 2 | 122 | Nneka Okoh | Chelmsford A.C. | U15 | 44.21 | |||
| 5 | 86 | Hannah Stone | Bracknell A.C. | U17 | DNF |
