| Senior Men 400 Metres HEAT 1
(Tooting Bec, 14 May) | | 1 | | David McKenzie (U20) | (Croydon Harriers) | 49.9 | | | | | | 2 | | A Mitchell | (Woking AC) | 50.6 | | | | | | 3 | | A Malcolm | (Hercules Wimbledon AC) | 51.5 | | | | | | 4 | | A Paton | (Belgrave Harriers) | 51.5 | | | | | | 5 | | P Parrish | (Herne Hill Harriers) | 55.1 | | | | | | 6 | | P Adams | (Herne Hill Harriers) | 55.6 | | | | |
| | | Senior Men 400 Metres HEAT 2
(Tooting Bec, 14 May) | | 1 | | A Vaughan | (Kingston AC & Polytechnic Harriers) | 51.5 | | | | | | 2 | | Stuart Paton | (Belgrave Harriers) | 51.7 | | | | | | 3 | | Shaun Hannan | | 52.2 | | | | | | 4 | | P Batty | (Hercules Wimbledon AC) | 52.6 | | | | | | 5 | | G Sagar | (Belgrave Harriers) | 53.6 | | | | | | 6 | | R Chapman | (South London Harriers) | 54.7 | | | | | | 7 | | P Facer | (Mitcham & Sutton AC) | 60.1 | | | | |
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