| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 195 | Imogen Wilson | Maidenhead AC | U15 | 42.30 | |||
| 2 | 4 | 366 | Tyra Coker | Windsor S E & H | U15 | 45.22 | |||
| 3 | 2 | 367 | Jemima Crocker | Reading AC | U15 | 45.84 | |||
| 4 | 5 | 361 | Katie Barnes | Reading AC | U15 | 46.83 | |||
| 5 | 1 | 379 | Scarlett Taplin | Reading AC | U15 | 48.00 | |||
| 6 | 6 | 246 | Bethany Austin | Bracknell AC | U15 | 49.11 |