| Senior Men 400 Metres HEAT 1
(Croydon Arena, 19 May) | | 1 | | Glenn Gray | (Herne Hill Harriers) | 50.0 | | | | | | 2 | | N Barker | (Team Solent) | 51.8 | | | | | | 3 | | C Knight | (Belgrave Harriers) | 52.5 | | | | | | 4 | | M Over | (Camberley & District AC) | 53.0 | | | | | | 5 | | P Batty | (Hercules Wimbledon AC) | 55.2 | | | | | | 6 | | F Casanovas | (Kingston AC & Polytechnic Harriers) | 56.4 | | | | | | 7 | | Roger Alsop | (Belgrave Harriers) | 57.6 | | | | |
| | | Senior Men 400 Metres HEAT 2
(Croydon Arena, 19 May) | | 1 | | Dan Donovan | (Epsom & Ewell Harriers) | 50.8 | | | | | | 2 | | A Vaughan | (Kingston AC & Polytechnic Harriers) | 51.9 | | | | | | 3 | | J Busk | (Belgrave Harriers) | 54.3 | | | | | | 4 | | Christopher Husbands | (Belgrave Harriers) | 55.3 | | | | | | 5 | | P Facer | (Mitcham & Sutton AC) | 59.5 | | | | |
|
