| Junior Men 400 Metres HEAT 1
(Motspur Park, 12 May) | | 1 | | Roy Dickens | (Shaftesbury Harriers) | 49.4 | | | | | | 2 | | John Gladwin | (Belgrave Harriers) | 51.3 | | | | | | 3 | | Trevor Llewelyn | (Blackheath Harriers) | 52.6 | | | | | | 4 | | R Young | (Surrey AC) | 53.9 | | | | | | 5 | | N Barker | (Woking AC) | 54.2 | | | | | | 6 | | D Sheldon | (Sutton & Cheam Harriers) | 55.2 | | | | | | 7 | | Alan Springett | (Croydon Harriers) | 55.3 | | | | |
| | | Junior Men 400 Metres HEAT 2
(Motspur Park, 12 May) | | 1 | | David Cocks | (Croydon Harriers) | 50.6 | | | | | | 2 | | N Knight | (Collingwood AC) | 51.8 | | | | | | 3 | | A Crookenden | (Hercules Wimbledon AC) | 53.4 | | | | | | 4 | | K Waghorn | (Woking AC) | 57.0 | | | | | | 5 | | M Quinlan | (Sutton & Cheam Harriers) | 59.4 | | | | |
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