| 1 | 14/8/2018 | 1-1 v Wycombe WanderersWycombe Wanderers 1-1 Northampton Town | Carabao Cup First Round |
| 2 | 18/8/2018 | 2-2 v Cambridge UnitedNorthampton Town 2-2 Cambridge United | Sky Bet League Two |
| 3 | 21/8/2018 | 0-1 v MorecambeMorecambe 1-0 Northampton Town | Sky Bet League Two |
| 4 | 25/8/2018 | 2-1 v Colchester UnitedColchester United 1-2 Northampton Town | Sky Bet League Two |
| 5 | 1/9/2018 | 1-1 v Tranmere RoversNorthampton Town 1-1 Tranmere Rovers | Sky Bet League Two |
| 6 | 4/9/2018 | 0-1 v Wycombe WanderersNorthampton Town 0-1 Wycombe Wanderers | Checkatrade Trophy Southern Group F |
| 7 | 8/9/2018 | 1-3 v Cheltenham TownNorthampton Town 1-3 Cheltenham Town | Sky Bet League Two |
| 8 | 15/9/2018 | 0-2 v Port ValePort Vale 2-0 Northampton Town | Sky Bet League Two |
| 9 | 22/9/2018 | 0-0 v Notts CountyNorthampton Town 0-0 Notts County | Sky Bet League Two |
| 10 | 29/9/2018 | 0-4 v Mansfield TownMansfield Town 4-0 Northampton Town | Sky Bet League Two |
| 11 | 2/10/2018 | 0-0 v BuryNorthampton Town 0-0 Bury | Sky Bet League Two |
| 12 | 6/10/2018 | 1-1 v Swindon TownSwindon Town 1-1 Northampton Town | Sky Bet League Two |
| 13 | 9/10/2018 | 2-1 v Oxford UnitedOxford United 1-2 Northampton Town | Checkatrade Trophy Southern Group F |
| 14 | 13/10/2018 | 2-1 v Forest Green RoversNorthampton Town 2-1 Forest Green Rovers | Sky Bet League Two |
| 15 | 20/10/2018 | 0-1 v Milton Keynes DonsMilton Keynes Dons 1-0 Northampton Town | Sky Bet League Two |
| 16 | 23/10/2018 | 5-0 v Macclesfield TownMacclesfield Town 0-5 Northampton Town | Sky Bet League Two |
| 17 | 27/10/2018 | 2-1 v Oldham AthleticNorthampton Town 2-1 Oldham Athletic | Sky Bet League Two |
| 18 | 3/11/2018 | 2-0 v Crewe AlexandraNorthampton Town 2-0 Crewe Alexandra | Sky Bet League Two |
| 19 | 10/11/2018 | 2-3 v Lincoln CityLincoln City 3-2 Northampton Town | Emirates FA Cup First Round |
| 20 | 17/11/2018 | 2-2 v Exeter CityExeter City 2-2 Northampton Town | Sky Bet League Two |
| 21 | 24/11/2018 | 2-2 v Grimsby TownNorthampton Town 2-2 Grimsby Town | Sky Bet League Two |
| 22 | 27/11/2018 | 1-3 v Newport CountyNewport County 3-1 Northampton Town | Sky Bet League Two |
| 23 | 4/12/2018 | 1-1 v Cambridge UnitedCambridge United 1-1 Northampton Town | Checkatrade Trophy Second Round |
| 24 | 8/12/2018 | 1-0 v Crawley TownCrawley Town 0-1 Northampton Town | Sky Bet League Two |
| 25 | 19/1/2019 | 1-2 v BuryForest Green Rovers 1-2 Bury | Sky Bet League Two |
| 26 | 22/1/2019 | 3-0 v Grimsby TownForest Green Rovers 3-0 Grimsby Town | Sky Bet League Two |
| 27 | 26/1/2019 | 2-0 v StevenageStevenage 0-2 Forest Green Rovers | Sky Bet League Two |
| 28 | 29/1/2019 | 1-1 v Mansfield TownForest Green Rovers 1-1 Mansfield Town | Sky Bet League Two |
| 29 | 9/2/2019 | 1-2 v Notts CountyForest Green Rovers 1-2 Notts County | Sky Bet League Two |
| 30 | 12/2/2019 | 0-2 v Swindon TownSwindon Town 2-0 Forest Green Rovers | Sky Bet League Two |
| 31 | 16/2/2019 | 3-0 v Yeovil TownForest Green Rovers 3-0 Yeovil Town | Sky Bet League Two |