| 1 | Sat 15 Aug 2020 | 121-1 v Horley TownHorley Town 1-1 Kingstonian | Friendly |
| 2 | Tue 18 Aug 2020 | 128-1 v Colliers Wood UnitedColliers Wood United 1-8 Kingstonian | Friendly |
| 3 | Tue 25 Aug 2020 | 184-1 v CobhamCobham 1-4 Kingstonian | Friendly |
| 4 | Tue 1 Sep 2020 | 151-0 v RamsgateKingstonian 1-0 Ramsgate | Friendly |
| 5 | Wed 30 Sep 2020 | 173-2 v Wingate & FinchleyKingstonian 3-2 Wingate & Finchley | Isthmian League - Premier Division |
| 6 | Sat 10 Oct 2020 | 162-0 v HornchurchKingstonian 2-0 Hornchurch | Isthmian League - Premier Division |
| 7 | Wed 21 Oct 2020 | 21-0 v Potters Bar TownKingstonian 1-0 Potters Bar Town | Isthmian League - Premier Division |
| 8 | Sat 24 Oct 2020 | 22-3 v CheshuntCheshunt 3-2 Kingstonian | Isthmian League - Premier Division |
| 9 | Sat 31 Oct 2020 | 22-3 v Maldon & TiptreeMaldon & Tiptree 3-2 Kingstonian | Buildbase FA Trophy Third Qualifying Round |
| 10 | Wed 4 Nov 2020 | 153-1 v Haringey BoroughKingstonian 3-1 Haringey Borough | Isthmian League - Premier Division |
| 11 | Sat 12 Dec 2020 | 21-3 v Ashford Town (Middx)Ashford Town (Middx) 3-1 Kingstonian | Friendly |
| 12 | Tue 15 Dec 2020 | 142-0 v MersthamMerstham 0-2 Kingstonian | Friendly |
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