| Youths 400 Metres HEAT 1
(Motspur Park, 25 April) | | 1 | | A Vaughan | (Epsom & Ewell Harriers) | 53.9 | | | | | | 2 | | J Rowland | (Dorking St Paul's AC) | 54.2 | | | | | | 3 | | Peter Maloney | (Croydon Harriers) | 55.9 | | | | | | 4 | | Ashley Smith | (Croydon Harriers) | 57.5 | | | | | | 5 | | Jonathan Hunter | (Croydon Harriers) | 60.0 | | | | | | 6 | | L Casey | (Mitcham AC) | 65.5 | | | | |
| | | Youths 400 Metres HEAT 2
(Motspur Park, 25 April) | | 1 | | P Fletcher | (Whitgift School, Croydon) | 54.5 | | | | | | 2 | | M Nelson | (Hercules Wimbledon AC) | 55.6 | | | | | | 3 | | Richard Vassall | (Guildford & Godalming AC) | 56.3 | | | | | | 4 | | J Sutton | (Epsom College) | 57.7 | | | | | | 5 | | P Burrows | (Sutton & Cheam Harriers) | 58.9 | | | | | | 6 | | A Speirs | (Kings College School, Wimbledon) | 62.6 | | | | |
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| Youths 400 Metres HEAT 3
(Motspur Park, 25 April) | | 1 | | Aaron Reader | (Mitcham AC) | 54.8 | | | | | | 2 | | B Pinsent | (Herne Hill Harriers) | 55.2 | | | | | | 3 | | C Knight | (Collingwood AC) | 56.6 | | | | | | 4 | | Adrian Iszatt | (South London Harriers) | 56.6 | | | | | | 5 | | M Galpin | (Camberley & District AC) | 57.5 | | | | |
| | | Youths 400 Metres FINAL
(Motspur Park, 25 April) | | 1 | | Aaron Reader | (Mitcham AC) | 53.4 | | | | | | 2 | | J Rowland | (Dorking St Paul's AC) | 53.7 | | | | | | 3 | | P Fletcher | (Whitgift School, Croydon) | 53.9 | | | | | | 4 | | A Vaughan | (Epsom & Ewell Harriers) | 54.4 | | | | | | 5 | | B Pinsent | (Herne Hill Harriers) | 54.9 | | | | | | 6 | | M Nelson | (Hercules Wimbledon AC) | 55.1 | | | | |
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