| Under-17 Women 800 Metres HEAT 1 (Croydon Arena, 14 May) | 1 | | Charlotte Best | (Crawley AC) | 2:21.6 | | | | | 2 | | Helena Robey | (Guildford & Godalming AC) | 2:25.3 | | | | | 3 | | Emily Adams | (Aldershot, Farnham & District AC) | 2:25.6 | | | | | 4 | | Jessica Headley | (Herne Hill Harriers) | 2:28.5 | | | | | 5 | | Catherine Shinerock | (Sutton & District AC) | 2:35.8 | | | | |
| | | Under-17 Women 800 Metres HEAT 2 (Croydon Arena, 14 May) | 1 | | Eleanor Baker | (South London Harriers) | 2:31.4 | | | | | 2 | | Olivia Hines | (Herne Hill Harriers) | 2:31.4 | | | | | 3 | | Laura Court | (Sutton & District AC) | 2:31.4 | | | | | 4 | | Gemma Dare | (Epsom & Ewell Harriers) | 2:32.2 | | | | | 5 | | Kelly Savile | (Hercules Wimbledon AC) | 2:32.4 | | | | |
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