| 1 | Sat 5 Sep 2020 | 211-1 v MorecambeGrimsby Town 1-1 Morecambe | Carabao Cup First Round North |
| 2 | Sat 19 Sep 2020 | 21 0-4 v Salford CityGrimsby Town 0-4 Salford City | Sky Bet League Two |
| 3 | Tue 13 Oct 2020 | 213-1 v Cheltenham TownCheltenham Town 1-3 Grimsby Town | Sky Bet League Two |
| 4 | Tue 20 Oct 2020 | 21 1-2 v Harrogate TownGrimsby Town 1-2 Harrogate Town | Sky Bet League Two |
| 5 | Sat 24 Oct 2020 | 211-1 v Carlisle UnitedGrimsby Town 1-1 Carlisle United | Sky Bet League Two |
| 6 | Tue 27 Oct 2020 | 210-1 v Forest Green RoversForest Green Rovers 1-0 Grimsby Town | Sky Bet League Two |
| 7 | Sat 31 Oct 2020 | 210-0 v StevenageStevenage 0-0 Grimsby Town | Sky Bet League Two |
| 8 | Sat 12 Dec 2020 | 211-1 v Mansfield TownGrimsby Town 1-1 Mansfield Town | Sky Bet League Two |
| 9 | Tue 15 Dec 2020 | 211-3 v Southend UnitedSouthend United 3-1 Grimsby Town | Sky Bet League Two |
| 10 | Sat 19 Dec 2020 | 211-0 v Scunthorpe UnitedGrimsby Town 1-0 Scunthorpe United | Sky Bet League Two |
| 11 | Tue 22 Dec 2020 | 211-2 v Bradford CityGrimsby Town 1-2 Bradford City | Sky Bet League Two |
| 12 | Sat 26 Dec 2020 | 211-3 v MorecambeMorecambe 3-1 Grimsby Town | Sky Bet League Two |
| 13 | Tue 29 Dec 2020 | 210-0 v Oldham AthleticGrimsby Town 0-0 Oldham Athletic | Sky Bet League Two |
| 14 | Sat 2 Jan 2021 | 211-2 v Cambridge UnitedGrimsby Town 1-2 Cambridge United | Sky Bet League Two |
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