| Professional Development League | Millwall U21 | Wigan Athletic U21 | 03‑May | 5-0 | |
| Professional Development League | Peterborough United U21 | Millwall U21 | 30‑Apr | 2-2 | |
| Professional Development League | Millwall U21 | Barnsley U21 | 23‑Apr | 3-3 | |
| Professional Development League | Fleetwood Town U21 | Millwall U21 | 18‑Apr | 2-3 | |
| Professional Development League | Millwall U21 | Coventry City U21 | 09‑Apr | 6-0 | |
| Professional Development League | Sheffield United U21 | Millwall U21 | 26‑Mar | 0-3 | |
| Professional Development League | Colchester United U21 | Millwall U21 | 15‑Mar | 2-3 | |
| Professional Development League | Millwall U21 | Watford U21 | 11‑Mar | 7-0 | |
| Professional Development League | Queens Park Rangers U21 | Millwall U21 | 05‑Mar | 2-1 | |
| Professional Development League | Millwall U21 | Swansea City U21 | 01‑Mar | 4-1 | |
| Professional Development League | Millwall U21 | Ipswich Town U21 | 27‑Feb | 2-1 | |
| Professional Development League | Bristol City U21 | Millwall U21 | 20‑Feb | 1-1 | |
| Professional Development League | Millwall U21 | Colchester United U21 | 12‑Feb | 2-2 | |
| Professional Development League | AFC Bournemouth U21 | Millwall U21 | 30‑Jan | 2-3 | |
| Professional Development League | Swansea City U21 | Millwall U21 | 08‑Jan | 3-0 | |
| Professional Development League | Millwall U21 | Charlton Athletic U21 | 04‑Jan | 1-6 | |
| Professional Development League | Millwall U21 | Cardiff City U21 | 18‑Dec | 5-1 | |
| Professional Development League | Watford U21 | Millwall U21 | 11‑Dec | 1-3 | |
| Professional Development League | Millwall U21 | Bristol City U21 | 27‑Nov | 5-1 | |
| Professional Development League | Ipswich Town U21 | Millwall U21 | 21‑Nov | 1-1 | |
| Professional Development League | Millwall U21 | AFC Bournemouth U21 | 30‑Oct | 1-2 | |
| Professional Development League | Charlton Athletic U21 | Millwall U21 | 16‑Oct | 2-3 | |
| Professional Development League | Millwall U21 | Queens Park Rangers U21 | 03‑Oct | 2-2 | |
| Professional Development League | Cardiff City U21 | Millwall U21 | 26‑Sep | 0-1 | |
| Professional Development League | Birmingham City U21 | Millwall U21 | 11‑Sep | 3-3 | |
| Professional Development League | Millwall U21 | Crewe Alexandra U21 | 04‑Sep | 2-0 | |
| Professional Development League | Hull City U21 | Millwall U21 | 30‑Aug | 2-3 | |
| Professional Development League | Millwall U21 | Burnley U21 | 21‑Aug | 3-1 | |
| Professional Development League | Sheffield Wednesday U21 | Millwall U21 | 15‑Aug | 2-2 | |
| Friendlies Clubs | Bromley | Millwall U21 | 22‑Jul | 2-1 | |
