Face à face
| England U23 Development League | 2018/01/15 13:00 | Watford v Cardiff City | L | 1-0 |
| England U23 Development League | 2017/10/23 17:59 | Cardiff City v Watford | W | 2-0 |
| England U23 Development League | 2017/05/03 12:59 | Watford v Cardiff City | L | 3-2 |
| England U23 Development League | 2017/03/06 19:00 | Cardiff City v Watford | W | 7-1 |
Home History
| England U23 Development League | 2018/01/29 13:30 | Coventry City Reserve v Cardiff City | W | 0-1 |
| England U23 Development League | 2018/01/15 13:00 | Watford v Cardiff City | L | 1-0 |
| England U23 Development League | 2018/01/08 11:58 | Cardiff City v Millwall | D | 1-1 |
| England U23 Development League | 2017/12/18 13:03 | Charlton Athletic v Cardiff City | D | 3-3 |
| England U23 Development League | 2017/12/12 19:00 | Cardiff City v Crystal Palace | L | 2-4 |
| Coupe Premier League U23 | 2017/11/02 13:01 | Cardiff City v Southampton U21 | L | 0-1 |
| England U23 Development League | 2017/10/30 14:02 | Queens Park v Cardiff City | L | 2-0 |
| England U23 Development League | 2017/10/23 17:59 | Cardiff City v Watford | W | 2-0 |
Away History
| England U23 Development League | 2018/01/29 13:00 | Watford v Crystal Palace | L | 1-3 |
| England U23 Development League | 2018/01/15 13:00 | Watford v Cardiff City | W | 1-0 |
| England U23 Development League | 2017/12/18 12:53 | Queens Park v Watford | D | 0-0 |
| England U23 Development League | 2017/11/27 14:02 | Watford v Millwall | W | 2-0 |
| England U23 Development League | 2017/11/20 12:59 | Coventry City Reserve v Watford | L | 2-1 |
| England U23 Development League | 2017/11/13 12:59 | Crystal Palace v Watford | L | 3-1 |
| Coupe Premier League U23 | 2017/11/03 19:02 | Blackburn Rovers (R) v Watford | L | 6-1 |
| England U23 Development League | 2017/10/30 14:02 | Watford v Bristol City | W | 2-0 |