| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | 147 | Brogan McCafferty | Cookham RC | U15 | 27.92 | Q | ||
| 2 | 4 | 387 | Mia Raczkevy-Eotvos | Windsor S E & H | U15 | 29.07 | |||
| 3 | 2 | 337 | Gerogina Amison | Basingstoke and Mid Hants AC | U15 | 31.49 | |||
| 4 | 6 | 391 | Sofia Blake | Windsor S E & H | U15 | 31.50 |