| 1 | 22/8/2020 | 11-3 v Enfield TownGrays Athletic 1-3 Enfield Town | Friendly |
| 2 | 24/8/2020 | 11-1 v Hashtag UnitedGrays Athletic 1-1 Hashtag United | Friendly |
| 3 | 2/9/2020 | 10-6 v Billericay TownGrays Athletic 0-6 Billericay Town | Friendly |
| 4 | 5/9/2020 | 11-1 v TilburyGrays Athletic 1-1 Tilbury | Friendly |
| 5 | 12/9/2020 | 11-0 v Witham TownGrays Athletic 1-0 Witham Town | Emirates FA Cup Preliminary Round |
| 6 | 19/9/2020 | 12-0 v Brentwood TownBrentwood Town 0-2 Grays Athletic | Isthmian League - North Division |
| 7 | 23/9/2020 | 13-1 v Potton UnitedGrays Athletic 3-1 Potton United | Emirates FA Cup First Qualifying Round |
| 8 | 26/9/2020 | 10-4 v Canvey IslandGrays Athletic 0-4 Canvey Island | Isthmian League - North Division |
| 9 | 3/10/2020 | 12-2 v Maldon & TiptreeMaldon & Tiptree 2-2 Grays Athletic | Emirates FA Cup Second Qualifying Round |
| 10 | 6/10/2020 | 1 1-0 v TilburyTilbury 0-1 Grays Athletic | Isthmian League - North Division |
| 11 | 10/10/2020 | 11-1 v RomfordGrays Athletic 1-1 Romford | Isthmian League - North Division |
| 12 | 17/10/2020 | 11-4 v Maldon & TiptreeMaldon & Tiptree 4-1 Grays Athletic | Buildbase FA Trophy Second Qualifying Round |
| 13 | 24/10/2020 | 10-1 v Soham Town RangersSoham Town Rangers 1-0 Grays Athletic | Isthmian League - North Division |
| 14 | 28/10/2020 | 11-0 v Great Wakering RoversGrays Athletic 1-0 Great Wakering Rovers | Isthmian League - North Division |
| 15 | 5/12/2020 | 10-3 v HornchurchHornchurch 3-0 Grays Athletic | Friendly |
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