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| Under-13 Girls 800 Metres HEAT 1 (Motspur Park, 26 April) | 1 | | L Carter | (Mitcham AC) | 2:36.8 | | | | | 2 | | R Turner | (Mitcham AC) | 2:39.3 | | | | | 3 | | N Toms | (Sutton & Cheam Harriers) | 2:44.1 | | | | | 4 | | A Shave | (Herne Hill Harriers) | 2:46.8 | | | | | 5 | | K Voice | (Woking AC) | 2:51.3 | | | | | 6 | | Debbie Marti | (Redhill & Reigate AC) | 2:53.1 | | | | | 7 | | C Arnold | | 2:57.5 | | | | | 8 | | E Lamkin | (Woking AC) | 3:01.3 | | | | | 9 | | L Down | (Hercules Wimbledon AC) | 3:08.4 | | | | |
| | | Under-13 Girls 800 Metres HEAT 2 (Motspur Park, 26 April) | 1 | | R Bennett | (Dorking St Paul's AC) | 2:40.7 | | | | | 2 | | Janet Smith | (Mitcham AC) | 2:43.0 | | | | | 3 | | Donna Brown | (Croydon Harriers) | 2:48.8 | | | | | 4 | | J Wood | (Redhill & Reigate AC) | 2:50.3 | | | | | 5 | | K Howarth | (Woking AC) | 2:51.4 | | | | | 6 | | D Keogh | (Mitcham AC) | 2:52.7 | | | | | 7 | | J Gage | (Woking AC) | 3:04.1 | | | | | 8 | | E Goode | (Dorking St Paul's AC) | 3:10.2 | | | | |
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| Under-13 Girls 800 Metres HEAT 3 (Motspur Park, 26 April) | 1 | | Bernadette Ross | (Mitcham AC) | 2:43.4 | | | | | 2 | | S Paterson | (Camberley & District AC) | 2:45.1 | | | | | 3 | | Lisa Simpson | (Sutton & Cheam Harriers) | 2:46.2 | | | | | 4 | | Jane Dinsdale | (Mitcham AC) | 2:52.0 | | | | | 5 | | K Woodley | (Mitcham AC) | 2:54.2 | | | | | 6 | | S Carberry | (Hercules Wimbledon AC) | 2:55.2 | | | | | 7 | | C Pyle | (Dorking St Paul's AC) | 2:55.6 | | | | | 8 | | J Duffy | (Woking AC) | 2:56.9 | | | | |
| | | Under-13 Girls 800 Metres HEAT 4 (Motspur Park, 26 April) | 1 | | D Gair | (Mitcham AC) | 2:42.0 | | | | | 2 | | M Bright | (Belgrave Harriers) | 2:42.5 | | | | | 3 | | K Firth | (Guildford & Godalming AC) | 2:43.0 | | | | | 4 | | S Hornblower | (Sutton & Cheam Harriers) | 2:50.0 | | | | | 5 | | K Pye | (Mitcham AC) | 2:50.2 | | | | | 6 | | R Coleman | (Hercules Wimbledon AC) | 2:53.1 | | | | | 7 | | W Coulson-Loades | (Sutton & Cheam Harriers) | 2:57.8 | | | | | 8 | | G Bates | (Woking AC) | 2:58.6 | | | | | 9 | | A Maitland | (Dorking St Paul's AC) | 3:05.9 | | | | |
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| Under-13 Girls 800 Metres FINAL (Motspur Park, 26 April) | 1 | | L Carter | (Mitcham AC) | 2:27.0 | | CBP | | | 2 | | D Gair | (Mitcham AC) | 2:33.2 | | | | | 3 | | Bernadette Ross | (Mitcham AC) | 2:35.2 | | | | | 4 | | R Bennett | (Dorking St Paul's AC) | 2:38.2 | | | | | 5 | | R Turner | (Mitcham AC) | 2:39.7 | | | | | 6 | | M Bright | (Belgrave Harriers) | 2:43.8 | | | | | 7 | | S Paterson | (Camberley & District AC) | 2:44.4 | | | | | 8 | | K Firth | (Guildford & Godalming AC) | 2:47.3 | | | | | 9 | | N Toms | (Sutton & Cheam Harriers) | 2:47.5 | | | | | 10 | | Janet Smith | (Mitcham AC) | 2:49.0 | | | | |
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