| Boys 800 Metres HEAT 1 (Motspur Park, 10 May) | 1 | | J Rowland | (Dorking St Paul's AC) | 2:09.2 | | | Q | | 2 | | A R Vaughan | (Epsom & Ewell Harriers) | 2:13.3 | | | Q | | 3 | | F Marsh | (Herne Hill Harriers) | 2:14.0 | | | Q | | 4 | | C Knight | (Collingwood AC) | 2:14.8 | | | q | | 5 | | D Morley | (Kings College School, Wimbledon) | 2:23.7 | | | q | | 6 | | B Pinsent | (St Josephs's College, Upper Norwood) | 2:25.4 | | | | | 7 | | A Chambers | (Collingwood AC) | 2:25.9 | | | | | 8 | | M Nelson | (Hercules Wimbledon AC / Garth School) | 2:31.3 | | | | | 9 | | A Foster | (Reigate Grammar School) | 2:35.4 | | | | | 10 | | N Thompson | (Whitgift School, Croydon) | 2:44.3 | | | | |
| | | Boys 800 Metres HEAT 2 (Motspur Park, 10 May) | 1 | | Keith Hutchins | (Surrey Beagles AC) | 2:13.1 | | | Q | | 2 | | I Plowman | (Epsom & Ewell Harriers) | 2:22.4 | | | Q | | 3 | | Murray Reid | (Epsom & Ewell Harriers) | 2:23.9 | | | Q | | 4 | | A Malcolm | (Hercules Wimbledon AC) | 2:25.4 | | | | | 5 | | K Moore | (Mitcham AC) | 2:28.2 | | | | | 6 | | B Clark | (Dorking St Paul's AC) | 2:28.3 | | | | | 7 | | R Seller | (Sutton & Cheam Harriers) | 2:32.5 | | | | | 8 | | J Clarke | (Collingwood AC) | 2:36.1 | | | | | 9 | | S Deazley | (Woking AC) | 2:36.8 | | | | | 10 | | M Spencer | (Epsom & Ewell Harriers) | 2:37.2 | | | | |
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| Boys 800 Metres HEAT 3 (Motspur Park, 10 May) | 1 | | S Thompson | (Redstone School) | 2:18.4 | | | Q | | 2 | | A Blakemore | (Surrey Beagles AC) | 2:21.8 | | | Q | | 3 | | T Gundry | (Beverley School, New Malden) | 2:22.5 | | | Q | | 4 | | J McDonald | (South London Harriers) | 2:23.7 | | | | | 5 | | R WIlby | (Redstone School) | 2:27.2 | | | | | 6 | | J Morss | (Epsom & Ewell Harriers) | 2:30.1 | | | | | 7 | | D Mears | (Camberley & District AC) | 2:31.0 | | | | | 8 | | Tom Kane | (Epsom & Ewell Harriers) | 2:31.2 | | | | | 9 | | I James | (Redhill & Reigate AC) | 2:40.0 | | | | | 10 | | D Pyle | (Dorking St Paul's AC) | 2:40.8 | | | | | 11 | | K Brookes | (Mitcham AC) | 2:41.8 | | | | |
| | | Boys 800 Metres FINAL (Motspur Park, 12 May) | 1 | | J Rowland | (Dorking St Paul's AC) | 2:06.7 | | | | | 2 | | Keith Hutchins | (Surrey Beagles AC) | 2:07.7 | | | | | 3 | | S Thompson | (Redstone School) | 2:11.1 | | | | | 4 | | A R Vaughan | (Epsom & Ewell Harriers) | 2:13.2 | | | | | 5 | | F Marsh | (Herne Hill Harriers) | 2:14.2 | | | | | 6 | | C Knight | (Collingwood AC) | 2:17.1 | | | | | 7 | | D J Morley | (Kings College School, Wimbledon) | 2:17.6 | | | | | 8 | | A Blakemore | (Surrey Beagles AC) | 2:20.0 | | | | | 9 | | I Plowman | (Epsom & Ewell Harriers) | 2:21.3 | | | | | 10 | | T Gundry | (Beverley School, New Malden) | 2:22.6 | | | | | 11 | | Murray Reid | (Epsom & Ewell Harriers) | 2:24.5 | | | | |
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