| Junior Men 400 Metres HEAT 1
(Motspur Park, 13 May) | | 1 | | Rod Milne | (Guildford & Godalming AC) | 48.9 | | CBP | Q | | | 2 | | V Walker | (Surrey AC) | 51.6 | | | Q | | | 3 | | N Todd | (Herne Hill Harriers) | 51.8 | | | q | | | 4 | | A Sutton | (Epsom College) | 52.4 | | | | | | 5 | | J Denyer | (Sutton & Cheam Harriers) | 53.2 | | | | | | 6 | | N Brunton-Reed | (Epsom College) | 53.7 | | | | |
| | | Junior Men 400 Metres HEAT 2
(Motspur Park, 13 May) | | 1 | | Steve Moriarty | (Epsom & Ewell Harriers) | 50.8 | | | Q | | | 2 | | I Cartwright | (Epsom & Ewell Harriers) | 51.7 | | | Q | | | 3 | | Tony Farrell | (Surrey Beagles AC) | 52.0 | | | q | | | 4 | | J Roberts | (Surrey AC) | 53.0 | | | | | | 5 | | A Payce-Drury | (Mitcham AC) | 55.3 | | | | |
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