| 1 | Sat 6 Feb 2021 | 220-0 v Leyton OrientLeyton Orient 0-0 Colchester United | Sky Bet League Two |
| 2 | Sat 20 Feb 2021 | 22 0-1 v Crawley TownCrawley Town 1-0 Colchester United | Sky Bet League Two |
| 3 | Tue 23 Feb 2021 | 221-2 v Exeter CityColchester United 1-2 Exeter City | Sky Bet League Two |
| 4 | Sat 27 Feb 2021 | 220-3 v Forest Green RoversForest Green Rovers 3-0 Colchester United | Sky Bet League Two |
| 5 | Tue 2 Mar 2021 | 222-1 v Carlisle UnitedColchester United 2-1 Carlisle United | Sky Bet League Two |
| 6 | Sat 6 Mar 2021 | 220-2 v Newport CountyColchester United 0-2 Newport County | Sky Bet League Two |
| 7 | Tue 9 Mar 2021 | 220-3 v Harrogate TownHarrogate Town 3-0 Colchester United | Sky Bet League Two |
| 8 | Sat 13 Mar 2021 | 220-0 v Grimsby TownGrimsby Town 0-0 Colchester United | Sky Bet League Two |
| 9 | Tue 16 Mar 2021 | 220-0 v Salford CitySalford City 0-0 Colchester United | Sky Bet League Two |
| 10 | Sat 20 Mar 2021 | 220-1 v Port ValeColchester United 0-1 Port Vale | Sky Bet League Two |
| 11 | Tue 23 Mar 2021 | 22 2-2 v Tranmere RoversColchester United 2-2 Tranmere Rovers | Sky Bet League Two |
| 12 | Sat 27 Mar 2021 | 221-2 v Bradford CityColchester United 1-2 Bradford City | Sky Bet League Two |
| 13 | Fri 2 Apr 2021 | 220-0 v Bolton WanderersBolton Wanderers 0-0 Colchester United | Sky Bet League Two |
| 14 | Mon 5 Apr 2021 | 221-1 v BarrowColchester United 1-1 Barrow | Sky Bet League Two |
| 15 | Fri 9 Apr 2021 | 222-5 v Oldham AthleticOldham Athletic 5-2 Colchester United | Sky Bet League Two |
| 16 | Sat 17 Apr 2021 | 22 2-1 v WalsallColchester United 2-1 Walsall | Sky Bet League Two |
| 17 | Tue 20 Apr 2021 | 222-0 v Southend UnitedColchester United 2-0 Southend United | Sky Bet League Two |
| 18 | Sat 24 Apr 2021 | 220-1 v Cheltenham TownCheltenham Town 1-0 Colchester United | Sky Bet League Two |
| 19 | Sat 1 May 2021 | 22 1-0 v Salford CityColchester United 1-0 Salford City | Sky Bet League Two |
| 20 | Sat 8 May 2021 | 220-0 v Tranmere RoversTranmere Rovers 0-0 Colchester United | Sky Bet League Two |
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