| 1 | Sat 18 Aug 2012 | 1-1 v Bath CityWelling United 1-1 Bath City | Blue Square Bet South |
| 2 | Sat 25 Aug 2012 | 1-1 v Tonbridge AngelsTonbridge Angels 1-1 Welling United | Blue Square Bet South |
| 3 | Mon 27 Aug 2012 | 2-2 v Sutton UnitedWelling United 2-2 Sutton United | Blue Square Bet South |
| 4 | Sat 1 Sep 2012 | 1-2 v Hayes & Yeading UnitedHayes & Yeading United 2-1 Welling United | Blue Square Bet South |
| 5 | Tue 4 Sep 2012 | 2-0 v Eastbourne BoroughWelling United 2-0 Eastbourne Borough | Blue Square Bet South |
| 6 | Sat 8 Sep 2012 | 3-2 v Staines TownWelling United 3-2 Staines Town | Blue Square Bet South |
| 7 | Sat 29 Sep 2012 | 1-2 v Dorchester TownDorchester Town 2-1 Welling United | Blue Square Bet South |
| 8 | Tue 2 Oct 2012 | 1-1 v Dover AthleticWelling United 1-1 Dover Athletic | Blue Square Bet South |
| 9 | Sat 27 Oct 2012 | 11-2 v Maidenhead UnitedMaidenhead United 2-1 Welling United | Blue Square Bet South |
| 10 | Sat 1 Dec 2012 | 13-1 v EastleighEastleigh 1-3 Welling United | Blue Square Bet South |
| 11 | Tue 4 Dec 2012 | 13-1 v BromleyWelling United 3-1 Bromley | Blue Square Bet South |
| 12 | Sat 5 Jan 2013 | 14-3 v Truro CityWelling United 4-3 Truro City | Blue Square Bet South |
| 13 | Sat 26 Jan 2013 | 11-0 v Basingstoke TownBasingstoke Town 0-1 Welling United | Blue Square Bet South |
| 14 | Sat 2 Feb 2013 | 13-2 v Dorchester TownWelling United 3-2 Dorchester Town | Blue Square Bet South |
| 15 | Tue 5 Feb 2013 | 14-0 v Boreham WoodWelling United 4-0 Boreham Wood | Blue Square Bet South |
| 16 | Sat 9 Feb 2013 | 12-3 v Dover AthleticDover Athletic 3-2 Welling United | Blue Square Bet South |
| 17 | Tue 12 Feb 2013 | 11-2 v Sutton UnitedSutton United 2-1 Welling United | Blue Square Bet South |
| 18 | Sat 16 Feb 2013 | 11-0 v Havant & WaterloovilleWelling United 1-0 Havant & Waterlooville | Blue Square Bet South |
| 19 | Tue 19 Feb 2013 | 12-0 v FarnboroughWelling United 2-0 Farnborough | Blue Square Bet South |
| 20 | Sat 23 Feb 2013 | 10-2 v Weston-super-MareWeston-super-Mare 2-0 Welling United | Blue Square Bet South |
| 21 | Tue 12 Mar 2013 | 14-1 v Tonbridge AngelsWelling United 4-1 Tonbridge Angels | Blue Square Bet South |
| 22 | Sat 23 Mar 2013 | 13-0 v Truro CityTruro City 0-3 Welling United | Blue Square Bet South |
| 23 | Fri 29 Mar 2013 | 13-0 v Chelmsford CityWelling United 3-0 Chelmsford City | Blue Square Bet South |
| 24 | Mon 1 Apr 2013 | 13-0 v Eastbourne BoroughEastbourne Borough 0-3 Welling United | Blue Square Bet South |
| 25 | Sat 6 Apr 2013 | 11-2 v Salisbury CitySalisbury City 2-1 Welling United | Blue Square Bet South |
| 26 | Tue 9 Apr 2013 | 12-2 v Staines TownStaines Town 2-2 Welling United | Blue Square Bet South |
| 27 | Sat 13 Apr 2013 | 14-1 v Weston-super-MareWelling United 4-1 Weston-super-Mare | Blue Square Bet South |
| 28 | Sat 20 Apr 2013 | 11-1 v Boreham WoodBoreham Wood 1-1 Welling United | Blue Square Bet South |
| 29 | Sat 27 Apr 2013 | 11-1 v EastleighWelling United 1-1 Eastleigh | Blue Square Bet South |
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