| 1 | Sat 5 Sep 2020 | 43-1 v Crawley TownCrawley Town 1-3 Millwall | Carabao Cup First Round South |
| 2 | Sat 12 Sep 2020 | 40-0 v Stoke CityMillwall 0-0 Stoke City | Sky Bet Championship |
| 3 | Tue 15 Sep 2020 | 43-1 v Cheltenham TownMillwall 3-1 Cheltenham Town | Carabao Cup Second Round |
| 4 | Sat 19 Sep 2020 | 41-0 v Rotherham UnitedRotherham United 0-1 Millwall | Sky Bet Championship |
| 5 | Wed 23 Sep 2020 | 40-2 v BurnleyMillwall 0-2 Burnley | Carabao Cup Third Round |
| 6 | Sat 26 Sep 2020 | 4 1-1 v BrentfordMillwall 1-1 Brentford | Sky Bet Championship |
| 7 | Sat 3 Oct 2020 | 41-2 v Swansea CitySwansea City 2-1 Millwall | Sky Bet Championship |
| 8 | Sat 17 Oct 2020 | 42-1 v Wycombe WanderersWycombe Wanderers 1-2 Millwall | Sky Bet Championship |
| 9 | Tue 20 Oct 2020 | 42-0 v Luton TownMillwall 2-0 Luton Town | Sky Bet Championship |
| 10 | Sat 24 Oct 2020 | 41-1 v BarnsleyMillwall 1-1 Barnsley | Sky Bet Championship |
| 11 | Wed 28 Oct 2020 | 42-0 v Preston North EndPreston North End 0-2 Millwall | Sky Bet Championship |
| 12 | Sat 31 Oct 2020 | 40-3 v Huddersfield TownMillwall 0-3 Huddersfield Town | Sky Bet Championship |
| 13 | Tue 3 Nov 2020 | 40-0 v Norwich CityNorwich City 0-0 Millwall | Sky Bet Championship |
| 14 | Sat 7 Nov 2020 | 40-0 v Sheffield WednesdaySheffield Wednesday 0-0 Millwall | Sky Bet Championship |
| 15 | Sat 21 Nov 2020 | 41-1 v Cardiff CityMillwall 1-1 Cardiff City | Sky Bet Championship |
| 16 | Wed 25 Nov 2020 | 4 1-1 v ReadingMillwall 1-1 Reading | Sky Bet Championship |
| 17 | Sat 28 Nov 2020 | 40-0 v Birmingham CityBirmingham City 0-0 Millwall | Sky Bet Championship |
| 18 | Wed 2 Dec 2020 | 41-2 v Blackburn RoversBlackburn Rovers 2-1 Millwall | Sky Bet Championship |
| 19 | Sat 5 Dec 2020 | 40-1 v Derby CountyMillwall 0-1 Derby County | Sky Bet Championship |
| 20 | Tue 8 Dec 2020 | 41-1 v Queens Park RangersMillwall 1-1 Queens Park Rangers | Sky Bet Championship |
| 21 | Sat 12 Dec 2020 | 4 0-3 v MiddlesbroughMiddlesbrough 3-0 Millwall | Sky Bet Championship |
| 22 | Tue 15 Dec 2020 | 42-0 v Bristol CityBristol City 0-2 Millwall | Sky Bet Championship |
| 23 | Sat 19 Dec 2020 | 41-1 v Nottingham ForestMillwall 1-1 Nottingham Forest | Sky Bet Championship |
| 24 | Sat 2 Jan 2021 | 41-2 v Coventry CityMillwall 1-2 Coventry City | Sky Bet Championship |
| 25 | Sat 9 Jan 2021 | 42-0 v Boreham WoodBoreham Wood 0-2 Millwall | Emirates FA Cup Third Round |
| 26 | Tue 12 Jan 2021 | 41-1 v AFC BournemouthAFC Bournemouth 1-1 Millwall | Sky Bet Championship |
| 27 | Sat 16 Jan 2021 | 41-3 v Nottingham ForestNottingham Forest 3-1 Millwall | Sky Bet Championship |
| 28 | Wed 20 Jan 2021 | 41-0 v Huddersfield TownHuddersfield Town 0-1 Millwall | Sky Bet Championship |
| 29 | Tue 26 Jan 2021 | 40-0 v WatfordMillwall 0-0 Watford | Sky Bet Championship |
| 30 | Sat 30 Jan 2021 | 41-1 v Cardiff CityCardiff City 1-1 Millwall | Sky Bet Championship |
| 31 | Tue 2 Feb 2021 | 40-0 v Norwich CityMillwall 0-0 Norwich City | Sky Bet Championship |
| 32 | Sat 6 Feb 2021 | 4 4-1 v Sheffield WednesdayMillwall 4-1 Sheffield Wednesday | Sky Bet Championship |
| 33 | Sat 13 Feb 2021 | 4 2-1 v ReadingReading 1-2 Millwall | Sky Bet Championship |
| 34 | Wed 17 Feb 2021 | 42-0 v Birmingham CityMillwall 2-0 Birmingham City | Sky Bet Championship |
| 35 | Sat 20 Feb 2021 | 4 0-0 v Wycombe WanderersMillwall 0-0 Wycombe Wanderers | Sky Bet Championship |
| 36 | Tue 23 Feb 2021 | 4 1-1 v Luton TownLuton Town 1-1 Millwall | Sky Bet Championship |
| 37 | Sat 27 Feb 2021 | 41-2 v BarnsleyBarnsley 2-1 Millwall | Sky Bet Championship |
| 38 | Tue 2 Mar 2021 | 42-1 v Preston North EndMillwall 2-1 Preston North End | Sky Bet Championship |
| 39 | Sat 6 Mar 2021 | 40-2 v Blackburn RoversMillwall 0-2 Blackburn Rovers | Sky Bet Championship |
| 40 | Sat 13 Mar 2021 | 41-0 v Derby CountyDerby County 0-1 Millwall | Sky Bet Championship |
| 41 | Wed 17 Mar 2021 | 42-3 v Queens Park RangersQueens Park Rangers 3-2 Millwall | Sky Bet Championship |
| 42 | Sat 20 Mar 2021 | 41-0 v MiddlesbroughMillwall 1-0 Middlesbrough | Sky Bet Championship |
| 43 | Fri 2 Apr 2021 | 41-0 v Rotherham UnitedMillwall 1-0 Rotherham United | Sky Bet Championship |
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