| Senior Men 400 Metres HEAT 1
(Croydon Arena, 16 May) | | 1 | | P J Speed-Andrews | (Kingston AC & Polytechnic Harriers) | 51.9 | | | | | | 2 | | S Dehaney | (Croydon Harriers) | 52.5 | | | | | | 3 | | P Baker | (Herne Hill Harriers) | 52.9 | | | | | | 4 | | Anthony Tilney | (Epsom & Ewell Harriers) | 55.4 | | | | |
| | | Senior Men 400 Metres HEAT 2
(Croydon Arena, 16 May) | | 1 | | Jon Sanders | (Kingston AC & Polytechnic Harriers) | 50.1 | | | | | | 2 | | Sam Kabiswa | (Croydon Harriers) | 50.2 | | | | | | 3 | | Mark Purser | (Croydon Harriers) | 50.8 | | | | | | 4 | | N Barker | (Team Solent) | 51.7 | | | | | | 5 | | C Bleasdale | (Guildford & Godalming AC) | 52.2 | | | | | | 6 | | R German | (Hercules Wimbledon AC) | 52.8 | | | | |
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