| 1 | Wed 27 Aug | 292-2 v Manchester UnitedGrimsby Town 2-2 Manchester United | Carabao Cup Second Round |
| 2 | Sat 30 Aug | 290-1 v Bristol RoversGrimsby Town 0-1 Bristol Rovers | Sky Bet League Two |
| 3 | Sat 13 Sep | 291-1 v Cambridge UnitedGrimsby Town 1-1 Cambridge United | Sky Bet League Two |
| 4 | Tue 16 Sep | 291-0 v Sheffield WednesdaySheffield Wednesday 0-1 Grimsby Town | Carabao Cup Third Round |
| 5 | Sat 20 Sep | 290-3 v BarnetBarnet 3-0 Grimsby Town | Sky Bet League Two |
| 6 | Sat 27 Sep | 297-1 v Cheltenham TownGrimsby Town 7-1 Cheltenham Town | Sky Bet League Two |
| 7 | Tue 7 Oct | 290-3 v Doncaster RoversGrimsby Town 0-3 Doncaster Rovers | EFL Trophy Northern Group C |
| 8 | Sat 1 Nov | 293-1 v Ebbsfleet UnitedGrimsby Town 3-1 Ebbsfleet United | Emirates FA Cup First Round |
| 9 | Tue 4 Nov | 295-3 v Everton U21Grimsby Town 5-3 Everton U21 | EFL Trophy Northern Group C |
| 10 | Sat 15 Nov | 290-1 v ChesterfieldGrimsby Town 0-1 Chesterfield | Sky Bet League Two |
| 11 | Thu 27 Nov | 291-2 v Tranmere RoversGrimsby Town 1-2 Tranmere Rovers | Sky Bet League Two |
| 12 | Sat 13 Dec | 290-2 v Notts CountyGrimsby Town 0-2 Notts County | Sky Bet League Two |
| 13 | Sat 20 Dec | 290-2 v BromleyBromley 2-0 Grimsby Town | Sky Bet League Two |
| 14 | Sat 24 Jan | 292-0 v Cheltenham TownCheltenham Town 0-2 Grimsby Town | Sky Bet League Two |
| 15 | Tue 27 Jan | 291-0 v Colchester UnitedColchester United 0-1 Grimsby Town | Sky Bet League Two |
| 16 | Wed 11 Feb | 291-0 v Accrington StanleyGrimsby Town 1-0 Accrington Stanley | Sky Bet League Two |
| 17 | Sat 28 Feb | 291-0 v Notts CountyNotts County 0-1 Grimsby Town | Sky Bet League Two |
| 18 | Sat 21 Mar | 295-0 v BarrowGrimsby Town 5-0 Barrow | Sky Bet League Two |
| 19 | Fri 3 Apr | 291-3 v Harrogate TownGrimsby Town 1-3 Harrogate Town | Sky Bet League Two |
| 20 | Mon 6 Apr | 292-0 v Crawley TownCrawley Town 0-2 Grimsby Town | Sky Bet League Two |
| 21 | Sat 11 Apr | 293-2 v Crewe AlexandraGrimsby Town 3-2 Crewe Alexandra | Sky Bet League Two |
| 22 | Tue 14 Apr | 291-2 v ChesterfieldChesterfield 2-1 Grimsby Town | Sky Bet League Two |
| 23 | Sat 18 Apr | 294-1 v GillinghamGillingham 1-4 Grimsby Town | Sky Bet League Two |
| 24 | Tue 21 Apr | 292-1 v Cambridge UnitedCambridge United 1-2 Grimsby Town | Sky Bet League Two |
| 25 | Sat 25 Apr | 294-0 v Swindon TownGrimsby Town 4-0 Swindon Town | Sky Bet League Two |
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