| Under-15 Boys 100 Metres HEAT 1 (Wimbledon Park, 8 May) | 1 | | Anthony Spratt | (Croydon Harriers) | 12.0 | -1.0 | | | | 2 | | Morris Tolaram | (Hercules Wimbledon AC) | 12.5 | -1.0 | | | | 3 | | Mark Duncan | (Woking AC) | 13.6 | -1.0 | | | | 4 | | Adam Barrett | (Tiffin School, Kingston) | 13.9 | -1.0 | | | | 5 | | R Bone | (Tiffin School, Kingston) | 15.3 | -1.0 | | | |
| | | Under-15 Boys 100 Metres HEAT 2 (Wimbledon Park, 8 May) | 1 | | William Chambers | (Woking AC) | 12.5 | -1.1 | | | | 2 | | J Rock | (Hercules Wimbledon AC) | 12.9 | -1.1 | | | | 3 | | T Marsh | (Oxted S) | 13.1 | -1.1 | | | | 4 | | B Charalambous | (Dorking Mole Valley AC) | 13.3 | -1.1 | | | | 5 | | Guy Wnuk | (Croydon Harriers) | 14.4 | -1.1 | | | |
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| Under-15 Boys 100 Metres HEAT 3 (Wimbledon Park, 8 May) | 1 | | Eshref Hassan | (Belgrave Harriers) | 12.5 | -1.1 | | | | 2 | | Tommy Dewey | (Croydon Harriers) | 12.9 | -1.1 | | | | 3 | | Kevin Jackson | (Hercules Wimbledon AC) | 13.2 | -1.1 | | | | 4 | | S Whittaker | (Sutton & District AC) | 13.8 | -1.1 | | | | 5 | | A Harris | (Tiffin School, Kingston) | 13.9 | -1.1 | | | |
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