| Senior Men 800 Metres HEAT 1 (Motspur Park, 13 May) | 1 | | Tim Brennan (U23) | (Sutton & Cheam Harriers) | 1:56.5 | | | | | 2 | | Dave Eglen | (Aldershot, Farnham & District AC) | 1:56.7 | | | | | 3 | | C Clark | (Hercules Wimbledon AC) | 1:56.8 | | | | | 4 | | Tom Conlon (U23) | (Herne Hill Harriers) | 1:57.0 | | | | | 5 | | P Oven | (Herne Hill Harriers) | 2:00.3 | | | | | 6 | | R Barrs-James | (Polytechnic Harriers) | 2:03.1 | | | | | 7 | | A Wigley | (Mitcham AC) | 2:03.4 | | | | | 8 | | Maurice Joyce (M35) | (Surrey AC) | 2:07.2 | | | | |
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| Senior Men 800 Metres HEAT 3 (Motspur Park, 13 May) | 1 | | Andrew Layfield | (Epsom & Ewell Harriers) | 1:56.0 | | | | | 2 | | Jonathan Owen | (Hercules Wimbledon AC) | 1:58.5 | | | | | 3 | | P Noke | (Aldershot, Farnham & District AC) | 2:00.9 | | | | | 4 | | D Askew | (Mitcham AC) | 2:01.6 | | | | | 5 | | John Watts | (Aldershot, Farnham & District AC) | 2:02.8 | | | | | 6 | | D Chapman | (South London Harriers) | 2:03.2 | | | | | 7 | | M Quinlan | (Sutton & Cheam Harriers) | 2:11.1 | | | | |
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