Head to Head
| England Development League 2 | 2024/10/05 13:00 | Cardiff U21 v Charlton U21 | L | 2-0 |
| England Development League 2 | 2024/02/20 14:00 | Cardiff U21 v Charlton U21 | L | 2-1 |
| England Development League 2 | 2023/11/27 14:00 | Charlton U21 v Cardiff U21 | D | 5-5 |
| England Development League 2 | 2023/02/28 14:00 | Cardiff U21 v Charlton U21 | W | 0-2 |
| England Development League 2 | 2022/11/10 13:00 | Charlton U21 v Cardiff U21 | W | 2-1 |
Home History
| England U21 Premier League Cup | 2025/01/20 19:00 | Birmingham U21 v Charlton U21 | W | 1-3 |
| England Development League 2 | 2025/01/07 13:00 | Brentford U21 v Charlton U21 | L | 3-2 |
| England U21 Premier League Cup | 2025/01/04 12:00 | Leeds U21 v Charlton U21 | W | 0-3 |
| England Development League 2 | 2024/12/20 13:00 | Charlton U21 v Swansea U21 | W | 3-1 |
| England U21 Premier League Cup | 2024/12/17 19:00 | Charlton U21 v Birmingham U21 | D | 2-2 |
| England Development League 2 | 2024/12/10 13:00 | Bournemouth U21 v Charlton U21 | W | 2-3 |
| England Development League 2 | 2024/12/03 13:00 | Charlton U21 v QPR U21 | W | 6-3 |
| England Development League 2 | 2024/11/18 13:00 | Bristol City U21 v Charlton U21 | D | 0-0 |
Away History
| England Development League 2 | 2025/01/14 14:00 | Cardiff U21 v Brentford U21 | L | 0-3 |
| England Development League 2 | 2025/01/07 13:00 | Ipswich U21 v Cardiff U21 | L | 5-1 |
| England U21 Premier League Cup | 2024/12/19 19:00 | Cardiff U21 v Watford U21 | W | 3-1 |
| England Development League 2 | 2024/12/16 14:00 | Cardiff U21 v QPR U21 | W | 2-1 |
| England Development League 2 | 2024/12/06 19:00 | Colchester U21 v Cardiff U21 | W | 0-1 |
| England Development League 2 | 2024/12/03 14:00 | Cardiff U21 v Bournemouth U21 | D | 0-0 |
| Wales League Cup | 2024/11/30 14:30 | Aberystwyth v Cardiff U21 | L | 5-2 |
| England U21 Premier League Cup | 2024/11/23 12:00 | Cardiff U21 v Ipswich U21 | L | 0-2 |