Head to Head
| England U23 Development League | 2019/12/13 13:00 | Watford U23 v Millwall U23 | D | 1-1 |
| England U23 Development League | 2018/12/07 14:57 | Watford U23 v Millwall U23 | L | 1-0 |
| England U23 Development League | 2018/10/12 12:31 | Millwall U23 v Watford U23 | W | 2-0 |
| England U23 Development League | 2018/02/19 13:01 | Millwall U23 v Watford U23 | L | 0-3 |
| England U23 Development League | 2017/11/27 14:02 | Watford U23 v Millwall U23 | L | 2-0 |
Home History
| England U23 Development League | 2020/09/15 12:00 | Ipswich U23 v Millwall U23 | D | 1-1 |
| England U23 Development League | 2020/03/09 13:00 | Coventry U23 v Millwall U23 | D | 0-0 |
| England U23 Development League | 2020/02/18 13:30 | Millwall U23 v Crystal Palace U23 | W | 1-0 |
| England U23 Development League | 2020/02/03 14:00 | Millwall U23 v Cardiff U23 | W | 3-0 |
| England U23 Development League | 2020/01/27 13:00 | QPR U23 v Millwall U23 | D | 1-1 |
| England U23 Development League | 2020/01/13 13:00 | Charlton U23 v Millwall U23 | W | 0-2 |
| England U23 Development League | 2020/01/07 13:30 | Millwall U23 v Colchester U23 | W | 1-0 |
| England U23 Development League | 2019/12/20 13:00 | Bolton U23 v Millwall U23 | W | 0-1 |
Away History
| England U23 Development League | 2020/09/14 13:00 | Watford U23 v Colchester U23 | L | 0-1 |
| England U23 Development League | 2020/03/06 13:00 | Watford U23 v Crystal Palace U23 | W | 3-0 |
| England U23 Development League | 2020/03/02 13:00 | Cardiff U23 v Watford U23 | L | 3-1 |
| England U23 Premier League Cup | 2020/02/21 19:00 | Watford U23 v Everton U23 | L | 0-1 |
| England U23 Development League | 2020/02/17 19:00 | Watford U23 v QPR U23 | L | 2-3 |
| England U23 Development League | 2020/02/10 13:00 | Ipswich U23 v Watford U23 | D | 2-2 |
| England U23 Premier League Cup | 2020/02/07 19:00 | Watford U23 v Fulham U23 | W | 1-0 |
| England U23 Development League | 2020/02/03 13:00 | Watford U23 v Charlton U23 | D | 3-3 |