| 1 | Sat 4 Aug 2018 | 2-2 v Harrogate TownHarrogate Town 2-2 Sutton United | National League |
| 2 | Tue 7 Aug 2018 | 1-0 v EastleighSutton United 1-0 Eastleigh | National League |
| 3 | Sat 11 Aug 2018 | 2-1 v Salford CitySutton United 2-1 Salford City | National League |
| 4 | Tue 14 Aug 2018 | 1-0 v Ebbsfleet UnitedEbbsfleet United 0-1 Sutton United | National League |
| 5 | Sat 18 Aug 2018 | 2-2 v Solihull MoorsSolihull Moors 2-2 Sutton United | National League |
| 6 | Sat 25 Aug 2018 | 0-0 v AFC FyldeSutton United 0-0 AFC Fylde | National League |
| 7 | Mon 27 Aug 2018 | 1-2 v Aldershot TownAldershot Town 2-1 Sutton United | National League |
| 8 | Sat 1 Sep 2018 | 1-1 v FC Halifax TownSutton United 1-1 FC Halifax Town | National League |
| 9 | Tue 4 Sep 2018 | 1-0 v Maidstone UnitedMaidstone United 0-1 Sutton United | National League |
| 10 | Tue 18 Sep 2018 | 0-4 v Boreham WoodSutton United 0-4 Boreham Wood | National League |
| 11 | Sat 22 Sep 2018 | 3-0 v WrexhamSutton United 3-0 Wrexham | National League |
| 12 | Tue 25 Sep 2018 | 2-2 v Dover AthleticSutton United 2-2 Dover Athletic | National League |
| 13 | Sat 29 Sep 2018 | 1-0 v Leyton OrientLeyton Orient 0-1 Sutton United | National League |
| 14 | Sat 6 Oct 2018 | 1-2 v BarrowBarrow 2-1 Sutton United | National League |
| 15 | Sat 13 Oct 2018 | 0-0 v BohemiansBohemians 0-0 Sutton United | IRN-BRU Cup Third Round |
| 16 | Sat 27 Oct 2018 | 3-2 v Hartlepool UnitedHartlepool United 2-3 Sutton United | National League |
| 17 | Tue 30 Oct 2018 | 1-1 v ChesterfieldSutton United 1-1 Chesterfield | National League |
| 18 | Sat 3 Nov 2018 | 1-0 v Dagenham & RedbridgeSutton United 1-0 Dagenham & Redbridge | National League |
| 19 | Sat 10 Nov 2018 | 0-0 v Slough TownSutton United 0-0 Slough Town | Emirates FA Cup First Round |
| 20 | Sat 17 Nov 2018 | 0-0 v GatesheadGateshead 0-0 Sutton United | National League |
| 21 | Tue 20 Nov 2018 | 1-1 v Slough TownSlough Town 1-1 Sutton United | Emirates FA Cup First Round Replay |
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