| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 380 | Louie Seamons | Windsor Slough Eton & Hounslow AC | U15 | 43.58 | |||
| 2 | 4 | 297 | Emily Deveney | Blackheath and Bromley Harriers Athletic | U15 | 47.23 | |||
| 3 | 5 | 360 | Bethan Norvill | Kingston AC And Poly Harriers | U15 | 47.97 | |||
| 4 | 3 | 415 | Popsie Wootten | Oxford City AC | V50 | 48.29 | |||
| 5 | 6 | 336 | Libby Kirby | Brighton & Hove AC | U15 | 48.86 |
