| Senior Men 800 Metres HEAT 1 (Motspur Park, 14 May) | 1 | | Martin Smith | (Polytechnic Harriers) | 1:55.9 | | | | | 2 | | D Eglen | (Aldershot, Farnham & District AC) | 1:56.4 | | | | | 3 | | C Chuter | (Surrey AC) | 1:57.3 | | | | | 4 | | David Cocks | (Croydon Harriers) | 1:57.9 | | | | | 5 | | C Clarke | (Hercules Wimbledon AC) | 1:58.2 | | | | | 6 | | R Chapman | (South London Harriers) | 2:01.2 | | | | | 7 | | D Askew | (Mitcham AC) | 2:01.2 | | | | | 8 | | S Littlewood | (Hercules Wimbledon AC) | 2:01.7 | | | | | 9 | | M Quinlan | (Sutton & Cheam Harriers) | 2:11.5 | | | | |
| | | Senior Men 800 Metres HEAT 2 (Motspur Park, 14 May) | 1 | | Andrew Layfield | (Epsom & Ewell Harriers) | 1:54.2 | | | | | 2 | | Michael Rezin | (Aldershot, Farnham & District AC) | 1:57.0 | | | | | 3 | | Jonathan Owen | (Hercules Wimbledon AC) | 1:57.9 | | | | | 4 | | Stuart Rough | (Epsom & Ewell Harriers) | 1:58.7 | | | | | 5 | | R Barrs-James | (Polytechnic Harriers) | 2:00.6 | | | | | 6 | | Michael Fidler | (Surrey Beagles AC) | 2:01.4 | | | | | 7 | | P Coleman | (Epsom & Ewell Harriers) | 2:03.2 | | | | | 8 | | P Gardner | (Belgrave Harriers) | 2:08.6 | | | | | 9 | | M Johnson | (Hercules Wimbledon AC) | 2:11.7 | | | | |
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