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| Under-13 Girls 100 Metres HEAT 1 (Motspur Park, 17 May) | 1 | | D Hart | (Redhill & Reigate AC) | 14.5 | | | | | 2 | | Anita Rush | (Woking AC) | 14.7 | | | | | 3 | | Elspeth Elson | (Camberley & District AC) | 15.0 | | | | | 4 | | A Bottung | (Parkhouse) | 15.0 | | | | | 5 | | S Hornblower | (Sutton & Cheam Harriers) | 15.1 | | | | | 6 | | K Greenfield | (Dorking St Paul's AC) | 16.1 | | | | |
| | | Under-13 Girls 100 Metres HEAT 2 (Motspur Park, 17 May) | 1 | | Bernadette Ross | (Mitcham AC) | 14.0 | | | | | 2 | | Alison Price | (Croydon Harriers) | 15.3 | | | | | 3 | | J Graham | (Guildford & Godalming AC) | 15.6 | | | | | 4 | | S Houlston | (Sutton & Cheam Harriers) | 16.0 | | | | | 5 | | K Frost | (Redhill & Reigate AC) | 16.1 | | | | | 6 | | L Down | (Hercules Wimbledon AC) | 17.0 | | | | |
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| Under-13 Girls 100 Metres HEAT 3 (Motspur Park, 17 May) | 1 | | Brenda Smith | (Croydon Harriers) | 13.9 | | | | | 2 | | Louise Mould | (Guildford & Godalming AC) | 14.7 | | | | | 3 | | Jackie Selley | (Walton AC) | 15.0 | | | | | 4 | | S Barritt | (Redhill & Reigate AC) | 15.3 | | | | | 5 | | C Arnold | | 16.0 | | | | | 6 | | E Goode | (Dorking St Paul's AC) | 16.7 | | | | |
| | | Under-13 Girls 100 Metres HEAT 4 (Motspur Park, 17 May) | 1 | | Janet Smith | (Mitcham AC) | 14.0 | | | | | 2 | | Beverly Burns | (Guildford & Godalming AC) | 14.4 | | | | | 3 | | Debbie Marti | (Redhill & Reigate AC) | 14.6 | | | | | 4 | | C Pyle | (Dorking St Paul's AC) | 15.1 | | | | | 5 | | L Taylor | (Sutton & Cheam Harriers) | 15.1 | | | | | 6 | | S Carberry | (Hercules Wimbledon AC) | 15.4 | | | | | 7 | | T Morgan | (Walton AC) | 15.8 | | | | |
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| | | Under-13 Girls 100 Metres S-FINAL 2 (Motspur Park, 17 May) | 1 | | Brenda Smith | (Croydon Harriers) | 13.6 | | | | | 2 | | D Hart | (Redhill & Reigate AC) | 14.1 | | | | | 3 | | Beverly Burns | (Guildford & Godalming AC) | 14.2 | | | | | 4 | | Louise Mould | (Guildford & Godalming AC) | 14.6 | | | | | 5 | | Jackie Selley | (Walton AC) | 14.7 | | | | | 6 | | J Graham | (Guildford & Godalming AC) | 15.5 | | | | |
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