| 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 | Tue 4 Sep 2012 | 2-0 v Eastbourne BoroughWelling United 2-0 Eastbourne Borough | Blue Square Bet South |
| 5 | Sat 8 Sep 2012 | 3-2 v Staines TownWelling United 3-2 Staines Town | Blue Square Bet South |
| 6 | Sat 15 Sep 2012 | 3-0 v FarnboroughFarnborough 0-3 Welling United | 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 3 Nov 2012 | 11-0 v Havant & WaterloovilleHavant & Waterlooville 0-1 Welling United | Blue Square Bet South |
| 11 | Sat 17 Nov 2012 | 11-0 v Salisbury CityWelling United 1-0 Salisbury City | Blue Square Bet South |
| 12 | Tue 27 Nov 2012 | 15-2 v Billericay TownWelling United 5-2 Billericay Town | Blue Square Bet South |
| 13 | Sat 1 Dec 2012 | 13-1 v EastleighEastleigh 1-3 Welling United | Blue Square Bet South |
| 14 | Tue 4 Dec 2012 | 13-1 v BromleyWelling United 3-1 Bromley | Blue Square Bet South |
| 15 | Sat 8 Dec 2012 | 13-0 v Hayes & Yeading UnitedWelling United 3-0 Hayes & Yeading United | Blue Square Bet South |
| 16 | Wed 26 Dec 2012 | 13-0 v AFC HornchurchAFC Hornchurch 0-3 Welling United | Blue Square Bet South |
| 17 | Tue 1 Jan 2013 | 14-0 v AFC HornchurchWelling United 4-0 AFC Hornchurch | Blue Square Bet South |
| 18 | Sat 5 Jan 2013 | 14-3 v Truro CityWelling United 4-3 Truro City | Blue Square Bet South |
| 19 | Sat 26 Jan 2013 | 11-0 v Basingstoke TownBasingstoke Town 0-1 Welling United | Blue Square Bet South |
| 20 | Sat 20 Apr 2013 | 11-1 v Boreham WoodBoreham Wood 1-1 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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