| 1 | Sat 18 Aug 2012 | 21-1 v BournemouthPortsmouth 1-1 Bournemouth | npower League One |
| 2 | Tue 21 Aug 2012 | 22-2 v Colchester UnitedColchester United 2-2 Portsmouth | npower League One |
| 3 | Sat 25 Aug 2012 | 22-4 v Carlisle UnitedCarlisle United 4-2 Portsmouth | npower League One |
| 4 | Sat 1 Sep 2012 | 20-1 v Oldham AthleticPortsmouth 0-1 Oldham Athletic | npower League One |
| 5 | Tue 4 Sep 2012 | 22-2 v BournemouthPortsmouth 2-2 Bournemouth | Johnstone's Paint Trophy First Round |
| 6 | Sat 15 Sep 2012 | 21-2 v WalsallPortsmouth 1-2 Walsall | npower League One |
| 7 | Tue 18 Sep 2012 | 21-2 v Swindon TownPortsmouth 1-2 Swindon Town | npower League One |
| 8 | Sat 22 Sep 2012 | 20-3 v Notts CountyNotts County 3-0 Portsmouth | npower League One |
| 9 | Sat 29 Sep 2012 | 22-1 v Scunthorpe UnitedPortsmouth 2-1 Scunthorpe United | npower League One |
| 10 | Tue 2 Oct 2012 | 22-1 v Yeovil TownYeovil Town 1-2 Portsmouth | npower League One |
| 11 | Sat 6 Oct 2012 | 22-2 v Milton Keynes DonsMilton Keynes Dons 2-2 Portsmouth | npower League One |
| 12 | Sat 20 Oct 2012 | 23-1 v Shrewsbury TownPortsmouth 3-1 Shrewsbury Town | npower League One |
| 13 | Tue 23 Oct 2012 | 21-2 v StevenageStevenage 2-1 Portsmouth | npower League One |
| 14 | Mon 29 Oct 2012 | 20-1 v Sheffield UnitedSheffield United 1-0 Portsmouth | npower League One |
| 15 | Sat 3 Nov 2012 | 20-2 v Notts CountyPortsmouth 0-2 Notts County | FA Cup with Budweiser First Round |
| 16 | Tue 6 Nov 2012 | 20-1 v BrentfordPortsmouth 0-1 Brentford | npower League One |
| 17 | Sat 10 Nov 2012 | 20-2 v BuryBury 2-0 Portsmouth | npower League One |
| 18 | Sat 17 Nov 2012 | 20-1 v Doncaster RoversPortsmouth 0-1 Doncaster Rovers | npower League One |
| 19 | Sat 24 Nov 2012 | 21-1 v Coventry CityCoventry City 1-1 Portsmouth | npower League One |
| 20 | Sat 8 Dec 2012 | 22-2 v Tranmere RoversTranmere Rovers 2-2 Portsmouth | npower League One |
| 21 | Sat 15 Dec 2012 | 20-0 v Preston North EndPortsmouth 0-0 Preston North End | npower League One |
| 22 | Wed 26 Dec 2012 | 21-2 v Crawley TownPortsmouth 1-2 Crawley Town | npower League One |
| 23 | Sat 29 Dec 2012 | 21-2 v Yeovil TownPortsmouth 1-2 Yeovil Town | npower League One |
| 24 | Tue 1 Jan 2013 | 20-5 v Swindon TownSwindon Town 5-0 Portsmouth | npower League One |
| 25 | Fri 4 Jan 2013 | 20-2 v WalsallWalsall 2-0 Portsmouth | npower League One |
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