| 1 | Sat 10 Oct 2020 | 80-0 v Bolton WanderersBolton Wanderers 0-0 Grimsby Town | Sky Bet League Two |
| 2 | Tue 13 Oct 2020 | 83-1 v Cheltenham TownCheltenham Town 1-3 Grimsby Town | Sky Bet League Two |
| 3 | Sat 17 Oct 2020 | 83-2 v Leyton OrientLeyton Orient 2-3 Grimsby Town | Sky Bet League Two |
| 4 | Sat 24 Oct 2020 | 81-1 v Carlisle UnitedGrimsby Town 1-1 Carlisle United | Sky Bet League Two |
| 5 | Tue 27 Oct 2020 | 80-1 v Forest Green RoversForest Green Rovers 1-0 Grimsby Town | Sky Bet League Two |
| 6 | Sat 31 Oct 2020 | 80-0 v StevenageStevenage 0-0 Grimsby Town | Sky Bet League Two |
| 7 | Tue 3 Nov 2020 | 81-0 v BarrowGrimsby Town 1-0 Barrow | Sky Bet League Two |
| 8 | Sat 21 Nov 2020 | 80-5 v Tranmere RoversTranmere Rovers 5-0 Grimsby Town | Sky Bet League Two |
| 9 | Sat 5 Dec 2020 | 81-2 v Colchester UnitedColchester United 2-1 Grimsby Town | Sky Bet League Two |
| 10 | Tue 8 Dec 2020 | 80-2 v Newport CountyGrimsby Town 0-2 Newport County | Sky Bet League Two |
| 11 | Sat 12 Dec 2020 | 81-1 v Mansfield TownGrimsby Town 1-1 Mansfield Town | Sky Bet League Two |
| 12 | Tue 15 Dec 2020 | 81-3 v Southend UnitedSouthend United 3-1 Grimsby Town | Sky Bet League Two |