| 1 | Sat 4 Aug 2018 | 21-4 v Forest Green RoversGrimsby Town 1-4 Forest Green Rovers | Sky Bet League Two |
| 2 | Sat 29 Sep 2018 | 21-2 v MorecambeGrimsby Town 1-2 Morecambe | Sky Bet League Two |
| 3 | Tue 2 Oct 2018 | 2 1-0 v Carlisle UnitedCarlisle United 0-1 Grimsby Town | Sky Bet League Two |
| 4 | Sat 6 Oct 2018 | 22-0 v Port ValeGrimsby Town 2-0 Port Vale | Sky Bet League Two |
| 5 | Tue 9 Oct 2018 | 20-2 v Doncaster RoversDoncaster Rovers 2-0 Grimsby Town | Checkatrade Trophy Northern Group G |
| 6 | Sat 20 Oct 2018 | 20-0 v Exeter CityGrimsby Town 0-0 Exeter City | Sky Bet League Two |
| 7 | Tue 23 Oct 2018 | 21-0 v Colchester UnitedGrimsby Town 1-0 Colchester United | Sky Bet League Two |
| 8 | Sat 27 Oct 2018 | 20-2 v Crewe AlexandraCrewe Alexandra 2-0 Grimsby Town | Sky Bet League Two |
| 9 | Sat 3 Nov 2018 | 2 0-1 v Cambridge UnitedCambridge United 1-0 Grimsby Town | Sky Bet League Two |
| 10 | Tue 6 Nov 2018 | 21-2 v Mansfield TownMansfield Town 2-1 Grimsby Town | Sky Bet League Two |
| 11 | Sat 22 Dec 2018 | 24-0 v Notts CountyGrimsby Town 4-0 Notts County | Sky Bet League Two |
| 12 | Wed 26 Dec 2018 | 21-0 v Port ValePort Vale 0-1 Grimsby Town | Sky Bet League Two |
| 13 | Sat 29 Dec 2018 | 22-1 v Exeter CityExeter City 1-2 Grimsby Town | Sky Bet League Two |
| 14 | Tue 1 Jan 2019 | 20-1 v Mansfield TownGrimsby Town 0-1 Mansfield Town | Sky Bet League Two |
| 15 | Sat 5 Jan 2019 | 20-1 v Crystal PalaceCrystal Palace 1-0 Grimsby Town | Emirates FA Cup Third Round |
| 16 | Sat 12 Jan 2019 | 20-2 v Macclesfield TownGrimsby Town 0-2 Macclesfield Town | Sky Bet League Two |
| 17 | Sat 26 Jan 2019 | 21-0 v Milton Keynes DonsGrimsby Town 1-0 Milton Keynes Dons | Sky Bet League Two |
| 18 | Sat 2 Feb 2019 | 23-0 v Newport CountyGrimsby Town 3-0 Newport County | Sky Bet League Two |
| 19 | Sat 9 Feb 2019 | 23-1 v Yeovil TownYeovil Town 1-3 Grimsby Town | Sky Bet League Two |
| 20 | Sat 16 Feb 2019 | 21-0 v Cheltenham TownGrimsby Town 1-0 Cheltenham Town | Sky Bet League Two |
| 21 | Sat 2 Mar 2019 | 20-2 v Cambridge UnitedGrimsby Town 0-2 Cambridge United | Sky Bet League Two |
| 22 | Tue 12 Mar 2019 | 21-4 v Tranmere RoversTranmere Rovers 4-1 Grimsby Town | Sky Bet League Two |
| 23 | Sat 23 Mar 2019 | 20-0 v BuryGrimsby Town 0-0 Bury | Sky Bet League Two |
| 24 | Sat 30 Mar 2019 | 20-2 v Oldham AthleticOldham Athletic 2-0 Grimsby Town | Sky Bet League Two |
| 25 | Sat 6 Apr 2019 | 20-2 v StevenageGrimsby Town 0-2 Stevenage | Sky Bet League Two |
| 26 | Sat 13 Apr 2019 | 21-1 v MorecambeMorecambe 1-1 Grimsby Town | Sky Bet League Two |
| 27 | Fri 19 Apr 2019 | 2 0-1 v Colchester UnitedColchester United 1-0 Grimsby Town | Sky Bet League Two |
| 28 | Mon 22 Apr 2019 | 21-0 v Carlisle UnitedGrimsby Town 1-0 Carlisle United | Sky Bet League Two |
| 29 | Sat 27 Apr 2019 | 2 1-2 v Notts CountyNotts County 2-1 Grimsby Town | Sky Bet League Two |
| 30 | Sat 4 May 2019 | 22-0 v Crewe AlexandraGrimsby Town 2-0 Crewe Alexandra | Sky Bet League Two |
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