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| European Junior (U20) Championships, 21-24 July, 2005, Kaunas, Lithuania | Representing |
| 21 July | Under-20 Men | 400 Metres | HEAT 3 | 1 | Martyn Rooney | (Croydon Harriers) | 47.53 | | | Great Britain & Northern Ireland |
| 21 July | Under-20 Men | 400 Metres | S-FINAL 2 | 1 | Martyn Rooney | (Croydon Harriers) | 46.57 | | | Great Britain & Northern Ireland |
| 21 July | Under-20 Men | High Jump | QUAL B | 6 | Nick Stanisavljevic | (Woking AC) | 2.10m | | | Great Britain & Northern Ireland |
| 21 July | Under-20 Women | 100 Metres | HEAT 3 | 4 | Joscelynn Hopeson | (Archbishop Tennison School, Croydon) | 12.21/-0.9 | | | Great Britain & Northern Ireland |
| 22 July | Under-20 Men | 400 Metres | FINAL | 2 | Martyn Rooney | (Croydon Harriers) | 46.44 | | | Great Britain & Northern Ireland |
| 23 July | Under-20 Men | High Jump | FINAL | 9 | Nick Stanisavljevic | (Woking AC) | 2.10m | | | Great Britain & Northern Ireland |
| 24 July | Under-20 Men | 4 X 100 Metres Relay | HEAT 1 | 99 | Harry Aikines-Aryeetey (Leg 1) | (Sutton & District AC) | DNF | | | Great Britain & Northern Ireland |
| 24 July | Under-20 Men | 4 X 400 Metres Relay | FINAL | 1 | Martyn Rooney (Leg 4) | (Croydon Harriers) | 3:06.67 | | | Great Britain & Northern Ireland |
| 24 July | Under-20 Women | 4 X 100 Metres Relay | HEAT 1 | 2 | Joscelynn Hopeson (Leg 1) | (Archbishop Tennison School, Croydon) | 44.94 | | | Great Britain & Northern Ireland |
| 24 July | Under-20 Women | 4 X 100 Metres Relay | FINAL | 5 | Joscelynn Hopeson (Leg 4) | (Archbishop Tennison School, Croydon) | 45.24 | | | Great Britain & Northern Ireland |
