| Under-13 Girls 70 Metres Hurdles (68.5cm) HEAT 1 (Kingsmeadow Stadium, 31 July) | 1 | | Elise Christian | (Guildford & Godalming AC) | 12.28 | -0.6 | | Q | | 2 | | Ama Amiaka | (Croydon Harriers) | 12.43 | -0.6 | | Q | | 3 | | Marly Taylor | (South London Harriers) | 13.26 | -0.6 | | Q | | 4 | | Arabella Whait | (Bracknell AC) | 13.75 | -0.6 | | q | | 5 | | Gracie Brough | (Sutton & District AC) | 15.05 | -0.6 | | | |
| | | Under-13 Girls 70 Metres Hurdles (68.5cm) HEAT 2 (Kingsmeadow Stadium, 31 July) | 1 | | Tyler Walton | (Waverley Harriers) | 12.87 | -0.7 | | Q | | 2 | | Keira Oxley | (Guildford & Godalming AC) | 13.17 | -0.7 | | Q | | 3 | | Ada Amiaka | (Croydon Harriers) | 13.44 | -0.7 | | Q | | 4 | | Zara Hughes | (Sutton & District AC) | 13.82 | -0.7 | | q | |
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