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| Under-15 Girls 800 Metres HEAT 1 (Croydon Arena, 14 May) | 1 | | Amanda O'Shea | (Hercules Wimbledon AC) | 2:27.0 | | | | | 2 | | Kate Hays | (Croydon Harriers) | 2:27.6 | | | | | 3 | | V King | (Woking AC) | 2:33.2 | | | | | 4 | | Nicola Eglinton | (Woking AC) | 2:34.1 | | | | | 5 | | Jessica Meller | (Sutton & District AC) | 2:53.0 | | | | | 6 | | Z Feeney | (Dorking Mole Valley AC) | 2:54.9 | | | | | 7 | | R Haynes | (Hercules Wimbledon AC) | 3:04.5 | | | | |
| | | Under-15 Girls 800 Metres HEAT 2 (Croydon Arena, 14 May) | 1 | | K Brathwaite | (Hercules Wimbledon AC) | 2:25.8 | | | | | 2 | | Sophia Van Wyk | (Woking AC) | 2:27.7 | | | | | 3 | | R Roome | (Sutton & District AC) | 2:29.4 | | | | | 4 | | Lucy Atunumuo | (Hercules Wimbledon AC) | 2:29.5 | | | | | 5 | | K Doull | (Holland Sports AC) | 2:42.7 | | | | | 6 | | N Parsons | (Woking AC) | 2:47.6 | | | | | 7 | | A Frost | (Hercules Wimbledon AC) | 2:48.5 | | | | | 8 | | C Smith | (Croydon Harriers) | 3:12.6 | | | | |
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| Under-15 Girls 800 Metres HEAT 3 (Croydon Arena, 14 May) | 1 | | L Sparrowhawk | (Hercules Wimbledon AC) | 2:27.3 | | | | | 2 | | Astra Hartney | (Woking AC) | 2:28.1 | | | | | 3 | | Rebecca McMullin | (Dorking Mole Valley AC) | 2:34.8 | | | | | 4 | | Laura Brown | (Sutton & District AC) | 2:37.9 | | | | | 5 | | Alex Goodwin | (Croydon Harriers) | 2:45.5 | | | | | 6 | | A Hearn | (Hercules Wimbledon AC) | 2:57.0 | | | | | 7 | | V Baldwin | (Woking AC) | 2:58.3 | | | | |
| | | Under-15 Girls 800 Metres HEAT 4 (Croydon Arena, 14 May) | 1 | | Carean Vernon | (Hercules Wimbledon AC) | 2:25.2 | | | | | 2 | | C Thompson | (Croydon Harriers) | 2:28.1 | | | | | 3 | | Mary Adolphe | (Hercules Wimbledon AC) | 2:37.7 | | | | | 4 | | Nicola Jordan | (Sutton & District AC) | 2:38.6 | | | | | 5 | | K Craughwell | (Hercules Wimbledon AC) | 2:39.6 | | | | | 6 | | J Meadway | (Woking AC) | 2:39.6 | | | | | 7 | | Emily Nelson | (Epsom & Ewell Harriers) | 2:42.0 | | | | | 8 | | K Wallace | (Woking AC) | 2:49.5 | | | | |
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| Under-15 Girls 800 Metres FINAL (Croydon Arena, 15 May) | 1 | | Amanda O'Shea | (Hercules Wimbledon AC) | 2:16.8 | | =CBP | | | 2 | | Carean Vernon | (Hercules Wimbledon AC) | 2:17.9 | | | | | 3 | | K Brathwaite | (Hercules Wimbledon AC) | 2:21.3 | | | | | 4 | | C Thompson | (Croydon Harriers) | 2:23.5 | | | | | 5 | | Astra Hartney | (Woking AC) | 2:24.2 | | | | | 6 | | Kate Hays | (Croydon Harriers) | 2:25.7 | | | | | 7 | | L Sparrowhawk | (Hercules Wimbledon AC) | 2:27.4 | | | | | 8 | | Sophia Van Wyk | (Woking AC) | 2:27.8 | | | | |
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