| 1 | Sat 5 Sep 2020 | 33-1 v Crawley TownCrawley Town 1-3 Millwall | Carabao Cup First Round South |
| 2 | Sat 12 Sep 2020 | 30-0 v Stoke CityMillwall 0-0 Stoke City | Sky Bet Championship |
| 3 | Tue 15 Sep 2020 | 33-1 v Cheltenham TownMillwall 3-1 Cheltenham Town | Carabao Cup Second Round |
| 4 | Sat 19 Sep 2020 | 3 1-0 v Rotherham UnitedRotherham United 0-1 Millwall | Sky Bet Championship |
| 5 | Wed 23 Sep 2020 | 30-2 v BurnleyMillwall 0-2 Burnley | Carabao Cup Third Round |
| 6 | Sat 26 Sep 2020 | 31-1 v BrentfordMillwall 1-1 Brentford | Sky Bet Championship |
| 7 | Sat 17 Oct 2020 | 32-1 v Wycombe WanderersWycombe Wanderers 1-2 Millwall | Sky Bet Championship |
| 8 | Tue 20 Oct 2020 | 32-0 v Luton TownMillwall 2-0 Luton Town | Sky Bet Championship |
| 9 | Wed 28 Oct 2020 | 32-0 v Preston North EndPreston North End 0-2 Millwall | Sky Bet Championship |
| 10 | Sat 31 Oct 2020 | 30-3 v Huddersfield TownMillwall 0-3 Huddersfield Town | Sky Bet Championship |
| 11 | Tue 3 Nov 2020 | 30-0 v Norwich CityNorwich City 0-0 Millwall | Sky Bet Championship |
| 12 | Sat 7 Nov 2020 | 30-0 v Sheffield WednesdaySheffield Wednesday 0-0 Millwall | Sky Bet Championship |
| 13 | Sat 21 Nov 2020 | 31-1 v Cardiff CityMillwall 1-1 Cardiff City | Sky Bet Championship |
| 14 | Wed 25 Nov 2020 | 31-1 v ReadingMillwall 1-1 Reading | Sky Bet Championship |
| 15 | Sat 28 Nov 2020 | 30-0 v Birmingham CityBirmingham City 0-0 Millwall | Sky Bet Championship |
| 16 | Wed 2 Dec 2020 | 3 1-2 v Blackburn RoversBlackburn Rovers 2-1 Millwall | Sky Bet Championship |
| 17 | Sat 5 Dec 2020 | 30-1 v Derby CountyMillwall 0-1 Derby County | Sky Bet Championship |
| 18 | Tue 15 Dec 2020 | 32-0 v Bristol CityBristol City 0-2 Millwall | Sky Bet Championship |
| 19 | Sat 19 Dec 2020 | 31-1 v Nottingham ForestMillwall 1-1 Nottingham Forest | Sky Bet Championship |
| 20 | Sat 2 Jan 2021 | 3 1-2 v Coventry CityMillwall 1-2 Coventry City | Sky Bet Championship |
| 21 | Sat 13 Mar 2021 | 31-0 v Derby CountyDerby County 0-1 Millwall | Sky Bet Championship |
| 22 | Sat 20 Mar 2021 | 31-0 v MiddlesbroughMillwall 1-0 Middlesbrough | Sky Bet Championship |
| 23 | Fri 2 Apr 2021 | 31-0 v Rotherham UnitedMillwall 1-0 Rotherham United | Sky Bet Championship |
| 24 | Mon 5 Apr 2021 | 3 2-1 v Stoke CityStoke City 1-2 Millwall | Sky Bet Championship |
| 25 | Sat 10 Apr 2021 | 30-3 v Swansea CityMillwall 0-3 Swansea City | Sky Bet Championship |
| 26 | Sat 17 Apr 2021 | 30-0 v BrentfordBrentford 0-0 Millwall | Sky Bet Championship |
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