| Youths 400 Metres HEAT 1
(Tooting Bec, 27 April) | | 1 | | Anthony TiIney | (Epsom & Ewell Harriers) | 54.2 | | | | | | 2 | | J Beaver | (Walton AC) | 55.0 | | | | | | 3 | | S Rayner | (Mitcham & Sutton AC) | 55.2 | | | | | | 4 | | J Ramasami | (Epsom & Ewell Harriers) | 57.0 | | | | | | 5 | | I Higgins | (Guildford & Godalming AC) | 58.2 | | | | |
| | | Youths 400 Metres HEAT 2
(Tooting Bec, 27 April) | | 1 | | David McKenzie | (Croydon Harriers) | 53.3 | | | | | | 2 | | G Clark | (Dorking St Paul's AC) | 54.4 | | | | | | 3 | | David Toye | (Croydon Harriers) | 54.8 | | | | | | 4 | | D Shaw | (Epsom & Ewell Harriers) | 56.2 | | | | | | 5 | | S Ryan | (Garth School, Morden) | 56.9 | | | | | | 6 | | L Hunt | (Mitcham & Sutton AC) | 61.9 | | | | |
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| Youths 400 Metres HEAT 3
(Tooting Bec, 27 April) | | 1 | | Andrew David | (South London Harriers) | 55.0 | | | | | | 2 | | R Bolton | (Woking AC) | 56.0 | | | | | | 3 | | P Streetley | (Mitcham & Sutton AC) | 57.8 | | | | | | 4 | | Duaine Ladejo | (King Edward School, Witley) | 59.2 | | | | | | 5 | | N Sutehall | (Belgrave Harriers) | 62.2 | | | | |
| | | Youths 400 Metres FINAL
(Tooting Bec, 27 April) | | 1 | | David McKenzie | (Croydon Harriers) | 49.6 | | CBP | | | | 2 | | Anthony TiIney | (Epsom & Ewell Harriers) | 53.1 | | | | | | 3 | | Andrew David | (South London Harriers) | 53.9 | | | | | | 4 | | G Clark | (Dorking St Paul's AC) | 54.1 | | | | | | 5 | | S Rayner | (Mitcham & Sutton AC) | 55.8 | | | | | | 6 | | R Bolton | (Woking AC) | 55.9 | | | | | | 7 | | J Beaver | (Walton AC) | 55.9 | | | | | | 8 | | David Toye | (Croydon Harriers) | 56.8 | | | | |
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