| 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 29 Sep 2012 | 1-2 v Dorchester TownDorchester Town 2-1 Welling United | Blue Square Bet South |
| 7 | Tue 2 Oct 2012 | 1-1 v Dover AthleticWelling United 1-1 Dover Athletic | Blue Square Bet South |
| 8 | Sat 27 Oct 2012 | 11-2 v Maidenhead UnitedMaidenhead United 2-1 Welling United | Blue Square Bet South |
| 9 | Tue 27 Nov 2012 | 15-2 v Billericay TownWelling United 5-2 Billericay Town | Blue Square Bet South |
| 10 | Tue 4 Dec 2012 | 13-1 v BromleyWelling United 3-1 Bromley | Blue Square Bet South |
| 11 | Sat 8 Dec 2012 | 13-0 v Hayes & Yeading UnitedWelling United 3-0 Hayes & Yeading United | Blue Square Bet South |
| 12 | Wed 26 Dec 2012 | 13-0 v AFC HornchurchAFC Hornchurch 0-3 Welling United | Blue Square Bet South |
| 13 | Sat 5 Jan 2013 | 14-3 v Truro CityWelling United 4-3 Truro City | 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 | Sat 9 Mar 2013 | 11-1 v Basingstoke TownWelling United 1-1 Basingstoke Town | Blue Square Bet South |
| 20 | Tue 19 Mar 2013 | 10-1 v Bath CityBath City 1-0 Welling United | Blue Square Bet South |
| 21 | Sat 27 Apr 2013 | 11-1 v EastleighWelling United 1-1 Eastleigh | Blue Square Bet South |
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