| Senior Men 800 Metres HEAT 1 (Croydon Arena, 19 May) | 1 | | Ken Penney | (Haringey AC) | 1:57.7 | | | | | 2 | | John O'Shea | (Woking AC) | 1:57.8 | | | | | 3 | | Barry Dunn | (Camberley & District AC) | 1:58.9 | | | | | 4 | | G King | (Hercules Wimbledon AC) | 2:03.1 | | | | | 5 | | R Chapman | (South London Harriers) | 2:07.0 | | | | | 6 | | J Hadden | (Haslemere Border AC) | 2:07.2 | | | | | 7 | | John Garber | (Croydon Harriers) | 2:12.4 | | | | |
| | | Senior Men 800 Metres HEAT 2 (Croydon Arena, 19 May) | 1 | | Simon Fairbrother | (Boxhill Racers) | 1:55.5 | | | | | 2 | | Simon Wilson | (Hercules Wimbledon AC) | 1:56.1 | | | | | 3 | | D Scott | (LBoro C) | 1:56.4 | | | | | 4 | | Steven Bishop | (Boxhill Racers) | 2:01.5 | | | | | 5 | | Stuart Major | (South London Harriers) | 2:05.7 | | | | | 6 | | Roger Alsop | (Belgrave Harriers) | 2:07.0 | | | | | 7 | | I Murdey | (Woking AC) | 2:08.7 | | | | |
|