Head to Head
| England Development League 2 | 2025/01/24 13:00 | Charlton U21 v Cardiff U21 | W | 6-1 |
| 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 Development League 2 | 2025/09/16 12:00 | Hull U21 v Charlton U21 | W | 2-4 |
| England Development League 2 | 2025/09/09 12:00 | Charlton U21 v Crewe U21 | D | 3-3 |
| England Development League 2 | 2025/08/29 18:00 | Sheff Utd U21 v Charlton U21 | L | 3-1 |
| England Development League 2 | 2025/08/26 12:00 | Charlton U21 v Barnsley U21 | D | 1-1 |
| England Development League 2 | 2025/08/19 11:00 | Fleetwood Town U21 v Charlton U21 | W | 0-2 |
| England Development League 2 | 2025/08/12 12:00 | Charlton U21 v Sheffield Wed U21 | W | 5-0 |
| Club Friendly List | 2025/07/19 14:00 | Oxford City v Charlton U21 | L | 5-2 |
| England Development League 2 | 2025/05/05 13:00 | Charlton U21 v Coventry U21 | L | 0-1 |
Away History
| England Development League 2 | 2025/09/19 13:00 | Watford U21 v Cardiff U21 | W | 0-2 |
| England Development League 2 | 2025/09/16 12:00 | Huddersfield U21 v Cardiff U21 | D | 2-2 |
| England Development League 2 | 2025/09/02 12:00 | Peterborough U21 v Cardiff U21 | W | 1-4 |
| England Development League 2 | 2025/08/26 12:00 | Cardiff U21 v Wigan U21 | L | 1-2 |
| England Development League 2 | 2025/08/18 13:00 | Crewe U21 v Cardiff U21 | W | 0-3 |
| England Development League 2 | 2025/08/12 13:00 | Cardiff U21 v Sheff Utd U21 | D | 1-1 |
| Wales League Cup | 2025/08/01 18:30 | Cambrian United v Cardiff U21 | L | 2-0 |
| UK Friendlies | 2025/07/25 18:30 | Merthyr Town v Cardiff U21 | W | 4-6 |