| Under-17 Women 300 Metres Hurdles (76.2cm) HEAT 1 (Croydon Arena, 14 May) | 1 | | Emma Brown | (Sutton & District AC) | 46.9 | | | | | 2 | | Yewande Ige | (Sutton & District AC) | 47.0 | | | | | 3 | | Clare O'Sullivan | (Sutton & District AC) | 48.7 | | | | | 4 | | Sophia Van Wyk | (Woking AC) | 49.5 | | | | | 5 | | A Powell | (Epsom & Ewell Harriers) | 53.7 | | | | |
| | | Under-17 Women 300 Metres Hurdles (76.2cm) HEAT 2 (Croydon Arena, 14 May) | 1 | | Sarah Porter | (Sutton & District AC) | 49.5 | | | | | 2 | | B Teifi-Jones | (Guildford & Godalming AC) | 49.5 | | | | | 3 | | Caroline Parsons | (Guildford & Godalming AC) | 57.0 | | | | | 4 | | A Matthews | (Epsom & Ewell Harriers) | DSQ | | | | |
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