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| Under-13 Girls 100 Metres HEAT 1 (Motspur Park, 15 May) | 1 | | H Sawyer | (Surrey AC) | 14.5 | | CBP | Q | | 2 | | L Prideaux | (Sutton & Cheam Harriers) | 14.6 | | | Q | | 3 | | N Lewis | (Hercules Wimbledon AC) | 14.7 | | | Q | | 4 | | C Best | (Woking AC) | 14.9 | | | | | 5 | | T Bacon | (Epsom & Ewell Harriers) | 16.0 | | | | | 6 | | C Lempriere | (Hercules Wimbledon AC) | 16.5 | | | | |
| | | Under-13 Girls 100 Metres HEAT 2 (Motspur Park, 15 May) | 1 | | D Adams | (Sutton & Cheam Harriers) | 14.4 | | CBP | Q | | 2 | | S Green | (Hercules Wimbledon AC) | 14.6 | | | Q | | 3 | | D Berry | (Epsom & Ewell Harriers) | 14.7 | | | Q | | 4 | | J McQuillan | (Selsonia Ladies AC) | 15.0 | | | | | 5 | | Vivienne Hedges | (Croydon Harriers) | 16.7 | | | | |
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| Under-13 Girls 100 Metres HEAT 3 (Motspur Park, 15 May) | 1 | | Sandra French | (Feltham AC) | 12.9 | | CBP | Q | | 2 | | L Wheeler | (Hercules Wimbledon AC) | 14.7 | | | Q | | 3 | | J Pearson | (Epsom & Ewell Harriers) | 15.1 | | | Q | | 4 | | S Evans | (Sutton & Cheam Harriers) | 15.9 | | | | | 5 | | J Backhurst | (Hercules Wimbledon AC) | 17.1 | | | | |
| | | Under-13 Girls 100 Metres HEAT 4 (Motspur Park, 15 May) | 1 | | K Smith | (Woking AC) | 13.9 | | | Q | | 2 | | M Graves | (Mitcham AC) | 14.2 | | | Q | | 3 | | C Bradley | (Epsom & Ewell Harriers) | 14.6 | | | Q | | 4 | | K Brown | (Hercules Wimbledon AC) | 15.2 | | | | | 5 | | J Templeman | (Epsom & Ewell Harriers) | 15.6 | | | | | 6 | | G Ackhurst | (Hercules Wimbledon AC) | 15.9 | | | | |
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| Under-13 Girls 100 Metres S-FINAL 1 (Motspur Park, 15 May) | 1 | | Sandra French | (Feltham AC) | 12.9 | | =CBP | Q | | 2 | | M Graves | (Mitcham AC) | 14.4 | | | Q | | 3 | | H Sawyer | (Surrey AC) | 14.5 | | | Q | | 4 | | S Green | (Hercules Wimbledon AC) | 14.5 | | | | | 5 | | N Lewis | (Hercules Wimbledon AC) | 15.1 | | | | | 6 | | D Berry | (Epsom & Ewell Harriers) | 15.4 | | | | |
| | | Under-13 Girls 100 Metres S-FINAL 2 (Motspur Park, 15 May) | 1 | | K Smith | (Woking AC) | 13.9 | | | Q | | 2 | | C Bradley | (Epsom & Ewell Harriers) | 14.4 | | | Q | | 3 | | D Adams | (Sutton & Cheam Harriers) | 14.5 | | | Q | | 4 | | L Prideaux | (Sutton & Cheam Harriers) | 14.5 | | | | | 5 | | L Wheeler | (Hercules Wimbledon AC) | 14.7 | | | | | 6 | | J Pearson | (Epsom & Ewell Harriers) | 15.4 | | | | |
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| Under-13 Girls 100 Metres FINAL (Motspur Park, 15 May) | 1 | | Sandra French | (Feltham AC) | 13.0 | +3.3 | | | | 2 | | K Smith | (Woking AC) | 14.1 | +3.3 | | | | 3 | | M Graves | (Mitcham AC) | 14.4 | +3.3 | | | | 4 | | C Bradley | (Epsom & Ewell Harriers) | 14.4 | +3.3 | | | | 5 | | D Adams | (Sutton & Cheam Harriers) | 14.4 | +3.3 | | | | 6 | | H Sawyer | (Surrey AC) | 14.6 | +3.3 | | | |
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