Face à face
| England U23 Development League | 2021/01/19 13:00 | Cardiff City v Swansea City U21 | L | 2-1 |
| England U23 Development League | 2020/09/14 12:00 | Swansea City U21 v Cardiff City | W | 5-1 |
Home History
| England U23 Development League | 2021/10/28 13:00 | Swansea City U21 v Coventry City Reserve | L | 1-3 |
| England U23 Development League | 2021/10/25 13:00 | Swansea City U21 v Watford | W | 2-0 |
| England U23 Development League | 2021/10/19 12:30 | Millwall v Swansea City U21 | L | 3-1 |
| England U23 Development League | 2021/10/04 11:00 | Swansea City U21 v Ipswich Town | L | 0-3 |
| England U23 Development League | 2021/09/28 12:00 | Colchester v Swansea City U21 | L | 3-1 |
| England U23 Development League | 2021/09/24 10:00 | Swansea City U21 v Peterborough U23 | D | 1-1 |
| England U23 Development League | 2021/09/20 13:00 | Swansea City U21 v Crewe Alexandra | W | 4-2 |
| England U23 Development League | 2021/09/13 18:00 | Hull City v Swansea City U21 | L | 1-0 |
Away History
| 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 |
| England U23 Development League | 2021/08/16 12:00 | Cardiff City v Wigan | W | 1-0 |
| England U23 Development League | 2021/05/03 14:00 | Barnsley v Cardiff City | D | 1-1 |