Head to Head
| England - Development League 2 | 2023/02/03 12:00 | Colchester U21 v Cardiff U21 | L | 3-0 |
| England - Development League 2 | 2022/10/25 13:00 | Cardiff U21 v Colchester U21 | W | 4-1 |
Home History
| England - Development League 2 | 2023/11/07 14:00 | Cardiff U21 v Bristol City U21 | W | 3-0 |
| England - Development League 2 | 2023/10/30 13:00 | QPR U21 v Cardiff U21 | L | 3-2 |
| England - Development League 2 | 2023/10/24 12:00 | Watford U21 v Cardiff U21 | D | 2-2 |
| England - Development League 2 | 2023/10/03 12:00 | Ipswich U21 v Cardiff U21 | L | 5-2 |
| England - Development League 2 | 2023/09/26 13:00 | Cardiff U21 v Millwall U21 | L | 0-1 |
| Wales - Liga Cup | 2023/09/19 18:30 | Swansea U21 v Cardiff U21 | L | 6-4 |
| England - Development League 2 | 2023/09/12 12:00 | Sheff Utd U21 v Cardiff U21 | L | 6-2 |
| England - Development League 2 | 2023/09/01 13:00 | Cardiff U21 v Barnsley U21 | W | 2-1 |
Away History
| England - Premier League Cup - U21 | 2023/11/08 19:00 | Colchester U21 v Luton U21 | W | 2-0 |
| England - Development League 2 | 2023/10/31 19:00 | Ipswich U21 v Colchester U21 | L | 2-0 |
| England - Premier League Cup - U21 | 2023/10/06 18:00 | Colchester U21 v Chelsea U21 | L | 2-5 |
| England - Development League 2 | 2023/09/29 11:00 | Colchester U21 v Bournemouth U21 | L | 0-1 |
| England - Development League 2 | 2023/09/26 12:00 | Watford U21 v Colchester U21 | L | 2-1 |
| England - Premier League Cup - U21 | 2023/09/15 18:00 | Leeds U21 v Colchester U21 | L | 3-2 |
| England - Development League 2 | 2023/09/12 13:00 | Wigan U21 v Colchester U21 | L | 3-0 |
| England - Development League 2 | 2023/09/01 18:00 | Colchester U21 v Burnley U21 | L | 1-4 |