| Under-20 Men 800 Metres HEAT 1 (Wimbledon Park, 8 May) | 1 | | Mark Griffin | (Walton AC) | 2:01.9 | | | | | 2 | | D Hulbert | (Dorking Mole Valley AC) | 2:03.4 | | | | | 3 | | B Woodd | (Herne Hill Harriers) | 2:03.8 | | | | | 4 | | P Steen | (Herne Hill Harriers) | 2:09.6 | | | | | 5 | | P Dunbar | (Hercules Wimbledon AC) | 2:12.5 | | | | |
| | | Under-20 Men 800 Metres HEAT 2 (Wimbledon Park, 8 May) | 1 | | C Shorter | (Hercules Wimbledon AC) | 2:02.9 | | | | | 2 | | P Chaplin | (Woking AC) | 2:03.2 | | | | | 3 | | Gareth Dickinson | (Dorking Mole Valley AC) | 2:03.6 | | | | | 4 | | A Empson | (Brist Univ) | 2:03.6 | | | | | 5 | | Liam O'Flaherty | (Herne Hill Harriers) | 2:04.3 | | | | |
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