Head to Head
| England U23 Development League | 2019/10/21 12:00 | Colchester U23 v Cardiff U23 | W | 0-2 |
| England U23 Development League | 2019/01/21 13:01 | Colchester U23 v Cardiff U23 | L | 2-1 |
| England U23 Development League | 2018/04/12 13:00 | Cardiff U23 v Colchester U23 | L | 0-1 |
| England U23 Development League | 2018/03/29 12:00 | Colchester U23 v Cardiff U23 | W | 0-3 |
| England U23 Development League | 2017/04/10 12:00 | Colchester U23 v Cardiff U23 | D | 1-1 |
Home History
| England U23 Development League | 2020/01/06 13:00 | Cardiff U23 v Coventry U23 | L | 0-1 |
| England U23 Development League | 2019/12/16 13:00 | QPR U23 v Cardiff U23 | L | 4-1 |
| England U23 Development League | 2019/12/09 13:00 | Watford U23 v Cardiff U23 | D | 1-1 |
| England U23 Development League | 2019/11/25 13:00 | Cardiff U23 v Charlton U23 | D | 0-0 |
| England U23 Development League | 2019/11/11 13:00 | Bristol City U23 v Cardiff U23 | D | 2-2 |
| England U23 Development League | 2019/11/04 13:00 | Cardiff U23 v Birmingham U23 | L | 0-1 |
| England U23 Development League | 2019/10/28 19:00 | Cardiff U23 v Crystal Palace U23 | W | 3-0 |
| England U23 Development League | 2019/10/21 12:00 | Colchester U23 v Cardiff U23 | W | 0-2 |
Away History
| England U23 Development League | 2020/01/07 13:30 | Millwall U23 v Colchester U23 | L | 1-0 |
| England U23 Development League | 2019/12/16 19:00 | Colchester U23 v Charlton U23 | W | 3-2 |
| England U23 Development League | 2019/12/02 13:00 | QPR U23 v Colchester U23 | L | 2-0 |
| England U23 Premier League Cup | 2019/11/30 14:03 | Swansea U23 v Colchester U23 | W | 0-1 |
| England U23 Development League | 2019/11/25 13:00 | Coventry U23 v Colchester U23 | L | 3-1 |
| England U23 Development League | 2019/11/21 13:00 | Ipswich U23 v Colchester U23 | D | 1-1 |
| England U23 Premier League Cup | 2019/11/07 19:01 | Colchester U23 v Charlton U23 | L | 0-1 |
| England U23 Development League | 2019/11/04 13:00 | Colchester U23 v QPR U23 | W | 3-1 |