| Performances by Surrey Athletes at European U18 Championships |
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| 5 - 8 July 2018, Gyor, Hungary | Representing |
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| 6 July | Under-18 Women | 3000 Metres | FINAL | 9th | | Charlotte Alexander (Herne Hill Harriers) | 9:41.18 | | | Great Britain & Northern Ireland |
| 7 July | Under-18 Women | 100 Metres Hurdles (76.2cm) | HEAT 2 | 2nd | | Marcia Sey (Croydon Harriers) | 13.32/+2.5 | Q | | Great Britain & Northern Ireland |
| 7 July | Under-18 Women | 100 Metres Hurdles (76.2cm) | S-FINAL 1 | 1st | | Marcia Sey (Croydon Harriers) | 13.39/+2.7 | Q | | Great Britain & Northern Ireland |
| 8 July | Under-18 Women | 100 Metres Hurdles (76.2cm) | FINAL | 4th | | Marcia Sey (Croydon Harriers) | 13.44/+1.0 | | | Great Britain & Northern Ireland |
