Face à face
| England U23 Development League | 2021/02/09 13:00 | Cardiff City v Colchester | W | 4-1 |
| England U23 Development League | 2020/11/28 11:00 | Colchester v Cardiff City | L | 2-0 |
| England U23 Development League | 2020/01/13 13:00 | Cardiff City v Colchester | W | 2-1 |
| England U23 Development League | 2019/10/21 12:00 | Colchester v Cardiff City | W | 0-2 |
| England U23 Development League | 2019/01/21 13:01 | Colchester v Cardiff City | L | 2-1 |
| England U23 Development League | 2018/04/12 13:00 | Cardiff City v Colchester | L | 0-1 |
| England U23 Development League | 2018/03/29 12:00 | Colchester v Cardiff City | W | 0-3 |
| England U23 Development League | 2017/04/10 12:00 | Colchester v Cardiff City | D | 1-1 |
Home History
| England U23 Development League | 2021/11/23 13:30 | Queens Park v Cardiff City | W | 1-3 |
| England U23 Development League | 2021/11/01 19:00 | Swansea City U21 v Cardiff City | W | 1-3 |
| England U23 Development League | 2021/10/26 11:00 | Ipswich Town v Cardiff City | W | 1-2 |
| England U23 Development League | 2021/10/19 12:00 | Cardiff City v Charlton Athletic | W | 4-1 |
| England U23 Development League | 2021/09/27 12:00 | Cardiff City v Millwall | W | 2-0 |
| England U23 Development League | 2021/09/21 12:00 | Cardiff City v Sheff Utd | W | 2-0 |
| England U23 Development League | 2021/09/10 10:00 | Sheffield v Cardiff City | W | 0-3 |
| England U23 Development League | 2021/08/29 14:00 | Cardiff City v Peterborough U23 | W | 3-1 |
Away History
| Coupe Premier League U23 | 2021/11/16 19:00 | Colchester v Fulham U21 | D | 0-0 |
| England U23 Development League | 2021/11/08 19:00 | Colchester v Millwall | W | 2-0 |
| England U23 Development League | 2021/11/01 19:00 | Ipswich Town v Colchester | L | 2-0 |
| England U23 Development League | 2021/10/19 12:00 | Queens Park v Colchester | W | 0-2 |
| England U23 Development League | 2021/10/12 12:00 | Colchester v Wigan | L | 0-1 |
| Coupe Premier League U23 | 2021/10/08 18:00 | Colchester v Southend U23 | D | 1-1 |
| England U23 Development League | 2021/10/04 13:00 | Charlton Athletic v Colchester | D | 2-2 |
| England U23 Development League | 2021/09/28 12:00 | Colchester v Swansea City U21 | W | 3-1 |