Face à face
| England U23 Development League | 2021/03/09 13:00 | Cardiff City v Watford | W | 4-0 |
| England U23 Development League | 2020/12/15 13:00 | Watford v Cardiff City | D | 2-2 |
| England U23 Development League | 2020/03/02 13:00 | Cardiff City v Watford | W | 3-1 |
| England U23 Development League | 2019/12/09 13:00 | Watford v Cardiff City | D | 1-1 |
| England U23 Development League | 2019/03/29 15:01 | Watford v Cardiff City | D | 0-0 |
| England U23 Development League | 2018/11/19 19:00 | Cardiff City v Watford | W | 2-0 |
| Coupe Premier League U23 | 2018/03/31 13:00 | Watford v Cardiff City | W | 0-4 |
| Coupe Premier League U23 | 2018/02/01 13:16 | Cardiff City v Watford | D | 1-1 |
Home History
| England U23 Development League | 2021/11/30 13:00 | Cardiff City v Colchester | W | 2-0 |
| 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 |
Away History
| England U23 Development League | 2021/11/30 13:00 | Watford v Ipswich Town | L | 1-4 |
| Coupe Premier League U23 | 2021/11/23 19:00 | Watford v Birmingham | W | 4-1 |
| England U23 Development League | 2021/11/02 13:30 | Millwall v Watford | L | 2-1 |
| England U23 Development League | 2021/10/25 13:00 | Swansea City U21 v Watford | L | 2-0 |
| England U23 Development League | 2021/10/18 12:00 | Watford v Bristol City | L | 2-4 |
| Coupe Premier League U23 | 2021/10/08 18:00 | Huddersfield (R) v Watford | L | 6-0 |
| England U23 Development League | 2021/09/28 12:00 | Queens Park v Watford | D | 0-0 |
| England U23 Development League | 2021/09/17 12:00 | Watford v Hull City | W | 3-1 |