| 1 | Sat 5 Sep 2020 | 101-1 v MorecambeGrimsby Town 1-1 Morecambe | Carabao Cup First Round North |
| 2 | Sat 19 Sep 2020 | 100-4 v Salford CityGrimsby Town 0-4 Salford City | Sky Bet League Two |
| 3 | Sat 10 Oct 2020 | 100-0 v Bolton WanderersBolton Wanderers 0-0 Grimsby Town | Sky Bet League Two |
| 4 | Sat 17 Oct 2020 | 103-2 v Leyton OrientLeyton Orient 2-3 Grimsby Town | Sky Bet League Two |
| 5 | Sat 24 Oct 2020 | 101-1 v Carlisle UnitedGrimsby Town 1-1 Carlisle United | Sky Bet League Two |
| 6 | Tue 3 Nov 2020 | 101-0 v BarrowGrimsby Town 1-0 Barrow | Sky Bet League Two |
| 7 | Tue 17 Nov 2020 | 100-3 v Hull CityHull City 3-0 Grimsby Town | Papa John’s Trophy Group 10 |
| 8 | Sat 21 Nov 2020 | 100-5 v Tranmere RoversTranmere Rovers 5-0 Grimsby Town | Sky Bet League Two |
| 9 | Sat 5 Dec 2020 | 101-2 v Colchester UnitedColchester United 2-1 Grimsby Town | Sky Bet League Two |
| 10 | Tue 8 Dec 2020 | 100-2 v Newport CountyGrimsby Town 0-2 Newport County | Sky Bet League Two |
| 11 | Sat 12 Dec 2020 | 101-1 v Mansfield TownGrimsby Town 1-1 Mansfield Town | Sky Bet League Two |
| 12 | Sat 26 Dec 2020 | 101-3 v MorecambeMorecambe 3-1 Grimsby Town | Sky Bet League Two |
| 13 | Tue 29 Dec 2020 | 100-0 v Oldham AthleticGrimsby Town 0-0 Oldham Athletic | Sky Bet League Two |
| 14 | Sat 2 Jan 2021 | 101-2 v Cambridge UnitedGrimsby Town 1-2 Cambridge United | Sky Bet League Two |
| 15 | Sat 9 Jan 2021 | 100-3 v Port ValePort Vale 3-0 Grimsby Town | Sky Bet League Two |
| 16 | Sat 16 Jan 2021 | 100-0 v Southend UnitedGrimsby Town 0-0 Southend United | Sky Bet League Two |
| 17 | Sat 23 Jan 2021 | 100-3 v Scunthorpe UnitedScunthorpe United 3-0 Grimsby Town | Sky Bet League Two |
| 18 | Sat 20 Mar 2021 | 102-2 v Mansfield TownMansfield Town 2-2 Grimsby Town | Sky Bet League Two |
| 19 | Sat 27 Mar 2021 | 101-1 v WalsallGrimsby Town 1-1 Walsall | Sky Bet League Two |
| 20 | Sat 10 Apr 2021 | 10 0-1 v Bradford CityBradford City 1-0 Grimsby Town | Sky Bet League Two |
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