| Under-15 Boys 100 Metres HEAT 1 (Kingsmeadow Stadium, 9 May) | 1 | | Alex Burns | (Richmond & Twickenham AC) | 12.2 | | | | | 2 | | Jerome Osbourne | (Herne Hill Harriers) | 12.7 | | | | | 3 | | Andrew Hanlon | (Guildford & Godalming AC) | 13.2 | | | | | 4 | | Antony Maule | (Walton AC) | 13.3 | | | | | 5 | | James Heptonstall | (Kingston AC & Polytechnic Harriers) | 14.5 | | | | | 6 | | Tristan Natolie | (Camberley & District AC) | 15.3 | | | | |
| | | Under-15 Boys 100 Metres HEAT 2 (Kingsmeadow Stadium, 9 May) | 1 | | Robert Graham | (Hercules Wimbledon AC) | 12.3 | | | | | 2 | | Simon Watson | (Reigate Priory AC) | 12.8 | | | | | 3 | | Sam Madden | (Guildford & Godalming AC) | 13.2 | | | | | 4 | | Gavin Simmons | (Kingston AC & Polytechnic Harriers) | 14.0 | | | | | 5 | | Philip Kelly | (Kingston AC & Polytechnic Harriers) | 14.0 | | | | |
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