| 1 | Tue 5 Sep 2023 | 10-2 v BarnsleyBarnsley 2-0 Grimsby Town | EFL Trophy |
| 2 | Tue 10 Oct 2023 | 11-2 v Bradford CityGrimsby Town 1-2 Bradford City | EFL Trophy |
| 3 | Sat 28 Oct 2023 | 10-1 v Doncaster RoversDoncaster Rovers 1-0 Grimsby Town | Sky Bet League Two |
| 4 | Sun 5 Nov 2023 | 11-1 v Slough TownSlough Town 1-1 Grimsby Town | Emirates FA Cup First Round |
| 5 | Sat 11 Nov 2023 | 13-2 v MorecambeGrimsby Town 3-2 Morecambe | Sky Bet League Two |
| 6 | Tue 14 Nov 2023 | 17-2 v Slough TownGrimsby Town 7-2 Slough Town | Emirates FA Cup First Round Replay |
| 7 | Sat 18 Nov 2023 | 12-2 v Forest Green RoversForest Green Rovers 2-2 Grimsby Town | Sky Bet League Two |
| 8 | Sat 25 Nov 2023 | 11-1 v Sutton UnitedGrimsby Town 1-1 Sutton United | Sky Bet League Two |
| 9 | Tue 28 Nov 2023 | 11-1 v Milton Keynes DonsMilton Keynes Dons 1-1 Grimsby Town | Sky Bet League Two |
| 10 | Sat 2 Dec 2023 | 10-2 v Oxford UnitedOxford United 2-0 Grimsby Town | Emirates FA Cup Second Round |
| 11 | Sat 9 Dec 2023 | 12-1 v Crewe AlexandraGrimsby Town 2-1 Crewe Alexandra | Sky Bet League Two |
| 12 | Sat 16 Dec 2023 | 11-1 v Newport CountyNewport County 1-1 Grimsby Town | Sky Bet League Two |
| 13 | Sat 23 Dec 2023 | 11-2 v Harrogate TownGrimsby Town 1-2 Harrogate Town | Sky Bet League Two |
| 14 | Tue 26 Dec 2023 | 10-2 v Mansfield TownMansfield Town 2-0 Grimsby Town | Sky Bet League Two |
| 15 | Fri 29 Dec 2023 | 13-0 v Salford CitySalford City 0-3 Grimsby Town | Sky Bet League Two |
| 16 | Mon 1 Jan 2024 | 11-6 v WalsallGrimsby Town 1-6 Walsall | Sky Bet League Two |
| 17 | Sat 13 Jan 2024 | 15-5 v Notts CountyGrimsby Town 5-5 Notts County | Sky Bet League Two |
| 18 | Sat 27 Jan 2024 | 11-2 v Tranmere RoversGrimsby Town 1-2 Tranmere Rovers | Sky Bet League Two |
| 19 | Sat 3 Feb 2024 | 10-0 v Accrington StanleyAccrington Stanley 0-0 Grimsby Town | Sky Bet League Two |
| 20 | Sat 10 Feb 2024 | 11-3 v Stockport CountyGrimsby Town 1-3 Stockport County | Sky Bet League Two |
| 21 | Sat 17 Feb 2024 | 11-5 v Doncaster RoversGrimsby Town 1-5 Doncaster Rovers | Sky Bet League Two |
| 22 | Sat 24 Feb 2024 | 11-1 v MorecambeMorecambe 1-1 Grimsby Town | Sky Bet League Two |
| 23 | Sat 2 Mar 2024 | 11-0 v Forest Green RoversGrimsby Town 1-0 Forest Green Rovers | Sky Bet League Two |
| 24 | Tue 5 Mar 2024 | 10-0 v AFC WimbledonAFC Wimbledon 0-0 Grimsby Town | Sky Bet League Two |
| 25 | Sat 9 Mar 2024 | 11-1 v Sutton UnitedSutton United 1-1 Grimsby Town | Sky Bet League Two |
| 26 | Tue 12 Mar 2024 | 11-0 v Milton Keynes DonsGrimsby Town 1-0 Milton Keynes Dons | Sky Bet League Two |
| 27 | Sat 16 Mar 2024 | 11-1 v GillinghamGillingham 1-1 Grimsby Town | Sky Bet League Two |
| 28 | Sat 23 Mar 2024 | 11-3 v WrexhamGrimsby Town 1-3 Wrexham | Sky Bet League Two |
| 29 | Fri 29 Mar 2024 | 11-3 v BarrowBarrow 3-1 Grimsby Town | Sky Bet League Two |
| 30 | Mon 1 Apr 2024 | 11-1 v Bradford CityGrimsby Town 1-1 Bradford City | Sky Bet League Two |
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