| Senior Men 400 Metres HEAT 1
(Tooting Bec, 20 May) | | 1 | | Junior Huie | (South London Harriers) | 50.3 | | | | | | 2 | | Jason Hallifax (U23) | (Hercules Wimbledon AC) | 50.4 | | | | | | 3 | | R Wingfield | (Walton AC) | 50.7 | | | | | | 4 | | M Galpin | (Camberley & District AC) | 51.4 | | | | | | 5 | | Andrew Laughton | (Hercules Wimbledon AC) | 52.7 | | | | | | 6 | | P Facer | (Mitcham & Sutton AC) | 58.8 | | | | |
| | | Senior Men 400 Metres HEAT 2
(Tooting Bec, 20 May) | | 1 | | Donovan Reid | (Shaftesbury Barnet Harriers) | 49.7 | | | | | | 2 | | T Browne | (Herne Hill Harriers) | 50.4 | | | | | | 3 | | A Mitchell | (Woking AC) | 50.9 | | | | | | 4 | | D Scott | (LBoro C) | 51.2 | | | | | | 5 | | Anthony Tilney (U23) | (Epsom & Ewell Harriers) | 53.9 | | | | | | 6 | | P Parrish | (Herne Hill Harriers) | 56.5 | | | | |
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| Senior Men 400 Metres HEAT 3
(Tooting Bec, 20 May) | | 1 | | David Morrish (U23) | (Croydon Harriers) | 50.0 | | | | | | 2 | | Stuart Paton | (Belgrave Harriers) | 50.6 | | | | | | 3 | | C Knight | (Belgrave Harriers) | 51.1 | | | | | | 4 | | D Thorne | (Mitcham & Sutton AC) | 52.0 | | | | | | 5 | | M Bevan | (Redhill & Surrey Beagles AC) | 53.2 | | | | | | 6 | | M Chambers | (Redhill & Surrey Beagles AC) | 58.3 | | | | |
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