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| European U23 Championships, 13-16 July, 2017, Bydgoszcz, Poland | Representing |
| 14 July | Under-23 Men | 400 Metres Hurdles | HEAT 4 | 2 | Jacob Paul | (Windsor, Slough, Eton & Hounslow AC) | 51.04 | Q | | Great Britain & Northern Ireland |
| 15 July | Under-23 Men | 400 Metres Hurdles | S-FINAL 1 | 2 | Jacob Paul | (Windsor, Slough, Eton & Hounslow AC) | 49.85 | Q | | Great Britain & Northern Ireland |
| 16 July | Under-23 Men | 400 Metres Hurdles | FINAL | 5 | Jacob Paul | (Windsor, Slough, Eton & Hounslow AC) | 49.98 | | | Great Britain & Northern Ireland |
| 16 July | Under-23 Men | 4 X 100 Metres Relay | HEAT 1 | 1 | Theo Etienne (Leg 1) | (Hercules Wimbledon AC) | 39.45 | Q | | Great Britain & Northern Ireland |
| 16 July | Under-23 Men | 4 X 100 Metres Relay | FINAL | 2 | Theo Etienne (Leg 1) | (Hercules Wimbledon AC) | 39.11 | | | Great Britain & Northern Ireland |
| 13 July | Under-23 Women | 100 Metres | HEAT 1 | 2 | Imani Lansiquot | (Sutton & District AC) | 11.72/-0.4 | Q | | Great Britain & Northern Ireland |
| 13 July | Under-23 Women | 100 Metres | S-FINAL 2 | 2 | Imani Lansiquot | (Sutton & District AC) | 11.47/0.3 | Q | | Great Britain & Northern Ireland |
| 14 July | Under-23 Women | 100 Metres | FINAL | 4 | Imani Lansiquot | (Sutton & District AC) | 11.58/-0.6 | | | Great Britain & Northern Ireland |
| 14 July | Under-23 Women | 10,000 Metres | FINAL | 4 | Phoebe Law | (Kingston AC & Polytechnic Harriers) | 33:40.75 | | | Great Britain & Northern Ireland |
