| 1 | Tue 10 Jul 2018 | 241-0 v Brackley TownBrackley Town 0-1 Northampton Town | Friendly |
| 2 | Tue 14 Aug 2018 | 21-1 v Wycombe WanderersWycombe Wanderers 1-1 Northampton Town | Carabao Cup First Round |
| 3 | Tue 21 Aug 2018 | 20-1 v MorecambeMorecambe 1-0 Northampton Town | Sky Bet League Two |
| 4 | Sat 25 Aug 2018 | 22-1 v Colchester UnitedColchester United 1-2 Northampton Town | Sky Bet League Two |
| 5 | Sat 1 Sep 2018 | 21-1 v Tranmere RoversNorthampton Town 1-1 Tranmere Rovers | Sky Bet League Two |
| 6 | Sat 8 Sep 2018 | 21-3 v Cheltenham TownNorthampton Town 1-3 Cheltenham Town | Sky Bet League Two |
| 7 | Sat 15 Sep 2018 | 20-2 v Port ValePort Vale 2-0 Northampton Town | Sky Bet League Two |
| 8 | Tue 2 Oct 2018 | 2 0-0 v BuryNorthampton Town 0-0 Bury | Sky Bet League Two |
| 9 | Sat 6 Oct 2018 | 21-1 v Swindon TownSwindon Town 1-1 Northampton Town | Sky Bet League Two |
| 10 | Tue 9 Oct 2018 | 2 2-1 v Oxford UnitedOxford United 1-2 Northampton Town | Checkatrade Trophy Southern Group F |
| 11 | Sat 13 Oct 2018 | 22-1 v Forest Green RoversNorthampton Town 2-1 Forest Green Rovers | Sky Bet League Two |
| 12 | Sat 17 Nov 2018 | 2 2-2 v Exeter CityExeter City 2-2 Northampton Town | Sky Bet League Two |
| 13 | Sat 24 Nov 2018 | 22-2 v Grimsby TownNorthampton Town 2-2 Grimsby Town | Sky Bet League Two |
| 14 | Tue 4 Dec 2018 | 21-1 v Cambridge UnitedCambridge United 1-1 Northampton Town | Checkatrade Trophy Second Round |
| 15 | Sat 8 Dec 2018 | 21-0 v Crawley TownCrawley Town 0-1 Northampton Town | Sky Bet League Two |
| 16 | Sat 15 Dec 2018 | 21-1 v StevenageNorthampton Town 1-1 Stevenage | Sky Bet League Two |
| 17 | Sat 22 Dec 2018 | 21-1 v Yeovil TownYeovil Town 1-1 Northampton Town | Sky Bet League Two |
| 18 | Sat 29 Dec 2018 | 22-2 v Milton Keynes DonsNorthampton Town 2-2 Milton Keynes Dons | Sky Bet League Two |
| 19 | Tue 1 Jan 2019 | 21-2 v Forest Green RoversForest Green Rovers 2-1 Northampton Town | Sky Bet League Two |
| 20 | Tue 8 Jan 2019 | 21-2 v Bristol RoversNorthampton Town 1-2 Bristol Rovers | Checkatrade Trophy Third Round |
| 21 | Sat 12 Jan 2019 | 23-0 v Carlisle UnitedNorthampton Town 3-0 Carlisle United | Sky Bet League Two |
| 22 | Sat 19 Jan 2019 | 2 2-3 v Cambridge UnitedCambridge United 3-2 Northampton Town | Sky Bet League Two |
| 23 | Sat 26 Jan 2019 | 21-1 v MorecambeNorthampton Town 1-1 Morecambe | Sky Bet League Two |
| 24 | Tue 5 Feb 2019 | 2 2-1 v Tranmere RoversTranmere Rovers 1-2 Northampton Town | Sky Bet League Two |
| 25 | Sat 9 Feb 2019 | 21-1 v Lincoln CityLincoln City 1-1 Northampton Town | Sky Bet League Two |
| 26 | Sat 13 Apr 2019 | 21-1 v Mansfield TownNorthampton Town 1-1 Mansfield Town | Sky Bet League Two |
| 27 | Mon 22 Apr 2019 | 21-3 v BuryBury 3-1 Northampton Town | Sky Bet League Two |
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