| 1 | 5/9/2020 | 71-1 v MorecambeGrimsby Town 1-1 Morecambe | Carabao Cup First Round North |
| 2 | 19/9/2020 | 70-4 v Salford CityGrimsby Town 0-4 Salford City | Sky Bet League Two |
| 3 | 10/10/2020 | 7 0-0 v Bolton WanderersBolton Wanderers 0-0 Grimsby Town | Sky Bet League Two |
| 4 | 13/10/2020 | 73-1 v Cheltenham TownCheltenham Town 1-3 Grimsby Town | Sky Bet League Two |
| 5 | 17/10/2020 | 73-2 v Leyton OrientLeyton Orient 2-3 Grimsby Town | Sky Bet League Two |
| 6 | 24/10/2020 | 71-1 v Carlisle UnitedGrimsby Town 1-1 Carlisle United | Sky Bet League Two |
| 7 | 27/10/2020 | 7 0-1 v Forest Green RoversForest Green Rovers 1-0 Grimsby Town | Sky Bet League Two |
| 8 | 31/10/2020 | 70-0 v StevenageStevenage 0-0 Grimsby Town | Sky Bet League Two |
| 9 | 3/11/2020 | 71-0 v BarrowGrimsby Town 1-0 Barrow | Sky Bet League Two |
| 10 | 17/11/2020 | 70-3 v Hull CityHull City 3-0 Grimsby Town | Checkatrade Trophy Group 10 |
| 11 | 21/11/2020 | 70-5 v Tranmere RoversTranmere Rovers 5-0 Grimsby Town | Sky Bet League Two |
| 12 | 24/11/2020 | 72-1 v Crawley TownCrawley Town 1-2 Grimsby Town | Sky Bet League Two |
| 13 | 1/12/2020 | 71-4 v Exeter CityGrimsby Town 1-4 Exeter City | Sky Bet League Two |
| 14 | 19/12/2020 | 71-0 v Scunthorpe UnitedGrimsby Town 1-0 Scunthorpe United | Sky Bet League Two |
| 15 | 22/12/2020 | 71-2 v Bradford CityGrimsby Town 1-2 Bradford City | Sky Bet League Two |
| 16 | 26/12/2020 | 71-3 v MorecambeMorecambe 3-1 Grimsby Town | Sky Bet League Two |
| 17 | 29/12/2020 | 70-0 v Oldham AthleticGrimsby Town 0-0 Oldham Athletic | Sky Bet League Two |
| 18 | 2/1/2021 | 71-2 v Cambridge UnitedGrimsby Town 1-2 Cambridge United | Sky Bet League Two |
| 19 | 9/1/2021 | 70-3 v Port ValePort Vale 3-0 Grimsby Town | Sky Bet League Two |
| 20 | 16/1/2021 | 70-0 v Southend UnitedGrimsby Town 0-0 Southend United | Sky Bet League Two |
| 21 | 23/1/2021 | 70-3 v Scunthorpe UnitedScunthorpe United 3-0 Grimsby Town | Sky Bet League Two |
| 22 | 23/2/2021 | 72-1 v Crawley TownGrimsby Town 2-1 Crawley Town | Sky Bet League Two |
| 23 | 27/2/2021 | 70-1 v Harrogate TownHarrogate Town 1-0 Grimsby Town | Sky Bet League Two |
| 24 | 6/3/2021 | 71-2 v Forest Green RoversGrimsby Town 1-2 Forest Green Rovers | Sky Bet League Two |
| 25 | 9/3/2021 | 71-1 v Carlisle UnitedCarlisle United 1-1 Grimsby Town | Sky Bet League Two |
| 26 | 13/3/2021 | 70-0 v Colchester UnitedGrimsby Town 0-0 Colchester United | Sky Bet League Two |
| 27 | 17/3/2021 | 70-0 v Tranmere RoversGrimsby Town 0-0 Tranmere Rovers | Sky Bet League Two |
| 28 | 20/3/2021 | 72-2 v Mansfield TownMansfield Town 2-2 Grimsby Town | Sky Bet League Two |
| 29 | 23/3/2021 | 71-0 v BarrowBarrow 0-1 Grimsby Town | Sky Bet League Two |
| 30 | 27/3/2021 | 71-1 v WalsallGrimsby Town 1-1 Walsall | Sky Bet League Two |
| 31 | 2/4/2021 | 71-1 v Salford CitySalford City 1-1 Grimsby Town | Sky Bet League Two |
| 32 | 5/4/2021 | 71-1 v Cheltenham TownGrimsby Town 1-1 Cheltenham Town | Sky Bet League Two |
| 33 | 10/4/2021 | 70-1 v Bradford CityBradford City 1-0 Grimsby Town | Sky Bet League Two |
| 34 | 17/4/2021 | 72-1 v Bolton WanderersGrimsby Town 2-1 Bolton Wanderers | Sky Bet League Two |
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