| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 132 | Caitlin Harvey | Kingston AC And Poly Harriers | U15 | 45.18 | |||
| 2 | 6 | 97 | Rosie Kornevall | Lewes AC | U15 | 45.45 | |||
| 3 | 4 | 123 | Barry Morris | Eastbourne Rovers AC | V60 | 46.21 | |||
| 4 | 2 | 131 | Angel Doyle | Hillingdon AC | U15 | 46.62 | |||
| 5 | 119 | Katharine Boissiere | Ealing Southall & Middlesex AC | U15 | DNS |
