| 1 | Fri 21 Sep 2012 | 254-1 v Luton TownGrimsby Town 4-1 Luton Town | Blue Square Bet Premier |
| 2 | Tue 25 Sep 2012 | 253-0 v GatesheadGrimsby Town 3-0 Gateshead | Blue Square Bet Premier |
| 3 | Sat 29 Sep 2012 | 250-0 v Newport CountyNewport County 0-0 Grimsby Town | Blue Square Bet Premier |
| 4 | Sat 6 Oct 2012 | 250-2 v DartfordGrimsby Town 0-2 Dartford | Blue Square Bet Premier |
| 5 | Sat 27 Oct 2012 | 250-1 v Macclesfield TownGrimsby Town 0-1 Macclesfield Town | Blue Square Bet Premier |
| 6 | Sat 3 Nov 2012 | 251-0 v TamworthTamworth 0-1 Grimsby Town | Blue Square Bet Premier |
| 7 | Tue 6 Nov 2012 | 252-3 v HydeHyde 3-2 Grimsby Town | Blue Square Bet Premier |
| 8 | Sat 10 Nov 2012 | 255-1 v WokingGrimsby Town 5-1 Woking | Blue Square Bet Premier |
| 9 | Sat 17 Nov 2012 | 253-0 v Braintree TownGrimsby Town 3-0 Braintree Town | Blue Square Bet Premier |
| 10 | Sat 1 Dec 2012 | 251-1 v Ebbsfleet UnitedEbbsfleet United 1-1 Grimsby Town | Blue Square Bet Premier |
| 11 | Sat 8 Dec 2012 | 252-0 v TamworthGrimsby Town 2-0 Tamworth | Blue Square Bet Premier |
| 12 | Fri 21 Dec 2012 | 251-0 v WrexhamGrimsby Town 1-0 Wrexham | Blue Square Bet Premier |
| 13 | Tue 22 Jan 2013 | 252-0 v HydeGrimsby Town 2-0 Hyde | Blue Square Bet Premier |
| 14 | Sat 26 Jan 2013 | 250-0 v Cambridge UnitedCambridge United 0-0 Grimsby Town | Blue Square Bet Premier |
| 15 | Sat 9 Feb 2013 | 251-0 v AFC Telford UnitedGrimsby Town 1-0 AFC Telford United | Blue Square Bet Premier |
| 16 | Tue 19 Feb 2013 | 250-2 v Braintree TownBraintree Town 2-0 Grimsby Town | Blue Square Bet Premier |
| 17 | Tue 26 Feb 2013 | 253-1 v Ebbsfleet UnitedGrimsby Town 3-1 Ebbsfleet United | Blue Square Bet Premier |
| 18 | Sat 9 Mar 2013 | 251-3 v Kidderminster HarriersGrimsby Town 1-3 Kidderminster Harriers | Blue Square Bet Premier |
| 19 | Tue 12 Mar 2013 | 250-2 v Mansfield TownMansfield Town 2-0 Grimsby Town | Blue Square Bet Premier |
| 20 | Tue 19 Mar 2013 | 250-1 v Nuneaton TownNuneaton Town 1-0 Grimsby Town | Blue Square Bet Premier |
| 21 | Sat 30 Mar 2013 | 250-0 v BarrowGrimsby Town 0-0 Barrow | Blue Square Bet Premier |
| 22 | Mon 1 Apr 2013 | 252-1 v Stockport CountyStockport County 1-2 Grimsby Town | Blue Square Bet Premier |
| 23 | Wed 3 Apr 2013 | 253-1 v Macclesfield TownMacclesfield Town 1-3 Grimsby Town | Blue Square Bet Premier |
| 24 | Sat 6 Apr 2013 | 252-2 v SouthportGrimsby Town 2-2 Southport | Blue Square Bet Premier |
| 25 | Tue 16 Apr 2013 | 251-0 v WokingWoking 0-1 Grimsby Town | Blue Square Bet Premier |
| 26 | Sat 20 Apr 2013 | 253-0 v Newport CountyGrimsby Town 3-0 Newport County | Blue Square Bet Premier |
| 27 | Sun 28 Apr 2013 | 250-1 v Newport CountyNewport County 1-0 Grimsby Town | Blue Square Bet Premier Play-off Semi Final |
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