| 1 | Sat 5 Sep 2020 | 4 0-1 v Cheltenham TownPeterborough United 0-1 Cheltenham Town | Carabao Cup First Round South |
| 2 | Sat 19 Sep 2020 | 4 2-1 v Fleetwood TownPeterborough United 2-1 Fleetwood Town | Sky Bet League One |
| 3 | Sat 26 Sep 2020 | 40-1 v SunderlandSunderland 1-0 Peterborough United | Sky Bet League One |
| 4 | Sat 3 Oct 2020 | 43-1 v Swindon TownPeterborough United 3-1 Swindon Town | Sky Bet League One |
| 5 | Sat 10 Oct 2020 | 42-0 v Northampton TownNorthampton Town 0-2 Peterborough United | Sky Bet League One |
| 6 | Sat 17 Oct 2020 | 42-0 v Oxford UnitedPeterborough United 2-0 Oxford United | Sky Bet League One |
| 7 | Tue 20 Oct 2020 | 41-0 v Wigan AthleticWigan Athletic 0-1 Peterborough United | Sky Bet League One |
| 8 | Sat 24 Oct 2020 | 4 2-1 v Hull CityHull City 1-2 Peterborough United | Sky Bet League One |
| 9 | Tue 27 Oct 2020 | 42-2 v Burton AlbionPeterborough United 2-2 Burton Albion | Sky Bet League One |
| 10 | Tue 3 Nov 2020 | 42-0 v Bristol RoversBristol Rovers 0-2 Peterborough United | Sky Bet League One |
| 11 | Wed 2 Dec 2020 | 41-2 v AFC WimbledonAFC Wimbledon 2-1 Peterborough United | Sky Bet League One |
| 12 | Sat 5 Dec 2020 | 4 0-2 v PortsmouthPortsmouth 2-0 Peterborough United | Sky Bet League One |
| 13 | Sat 12 Dec 2020 | 4 4-1 v RochdalePeterborough United 4-1 Rochdale | Sky Bet League One |
| 14 | Sat 9 Jan 2021 | 4 1-1 v Lincoln CityLincoln City 1-1 Peterborough United | Sky Bet League One |
| 15 | Tue 12 Jan 2021 | 45-1 v PortsmouthPeterborough United 5-1 Portsmouth | Papa John’s Trophy Third Round |
| 16 | Tue 19 Jan 2021 | 42-1 v Charlton AthleticPeterborough United 2-1 Charlton Athletic | Sky Bet League One |
| 17 | Sat 23 Jan 2021 | 41-0 v Ipswich TownIpswich Town 0-1 Peterborough United | Sky Bet League One |
| 18 | Tue 26 Jan 2021 | 4 0-0 v Bristol RoversPeterborough United 0-0 Bristol Rovers | Sky Bet League One |
| 19 | Sat 30 Jan 2021 | 4 0-2 v Shrewsbury TownShrewsbury Town 2-0 Peterborough United | Sky Bet League One |
| 20 | Tue 2 Feb 2021 | 41-2 v Tranmere RoversTranmere Rovers 2-1 Peterborough United | Papa John’s Trophy Northern Group D |
| 21 | Sat 6 Feb 2021 | 42-0 v Crewe AlexandraPeterborough United 2-0 Crewe Alexandra | Sky Bet League One |
| 22 | Tue 9 Feb 2021 | 42-1 v Ipswich TownPeterborough United 2-1 Ipswich Town | Sky Bet League One |
| 23 | Tue 16 Feb 2021 | 43-1 v GillinghamGillingham 1-3 Peterborough United | Sky Bet League One |
| 24 | Sat 20 Feb 2021 | 43-0 v AFC WimbledonPeterborough United 3-0 AFC Wimbledon | Sky Bet League One |
| 25 | Tue 23 Feb 2021 | 43-0 v Plymouth ArgylePlymouth Argyle 0-3 Peterborough United | Sky Bet League One |
| 26 | Sat 27 Feb 2021 | 42-1 v Wigan AthleticPeterborough United 2-1 Wigan Athletic | Sky Bet League One |
| 27 | Tue 2 Mar 2021 | 40-0 v Oxford UnitedOxford United 0-0 Peterborough United | Sky Bet League One |
| 28 | Sat 6 Mar 2021 | 41-2 v Burton AlbionBurton Albion 2-1 Peterborough United | Sky Bet League One |
| 29 | Tue 9 Mar 2021 | 41-3 v Hull CityPeterborough United 1-3 Hull City | Sky Bet League One |
| 30 | Tue 16 Mar 2021 | 41-0 v PortsmouthPeterborough United 1-0 Portsmouth | Sky Bet League One |
| 31 | Sat 20 Mar 2021 | 43-3 v RochdaleRochdale 3-3 Peterborough United | Sky Bet League One |
| 32 | Tue 23 Mar 2021 | 4 1-3 v BlackpoolBlackpool 3-1 Peterborough United | Sky Bet League One |
| 33 | Sat 27 Mar 2021 | 47-0 v Accrington StanleyPeterborough United 7-0 Accrington Stanley | Sky Bet League One |
| 34 | Fri 2 Apr 2021 | 41-0 v Fleetwood TownFleetwood Town 0-1 Peterborough United | Sky Bet League One |
| 35 | Mon 5 Apr 2021 | 41-1 v SunderlandPeterborough United 1-1 Sunderland | Sky Bet League One |
| 36 | Sat 10 Apr 2021 | 43-0 v Swindon TownSwindon Town 0-3 Peterborough United | Sky Bet League One |
| 37 | Fri 16 Apr 2021 | 43-1 v Northampton TownPeterborough United 3-1 Northampton Town | Sky Bet League One |
| 38 | Tue 20 Apr 2021 | 4 0-1 v GillinghamPeterborough United 0-1 Gillingham | Sky Bet League One |
| 39 | Sat 24 Apr 2021 | 4 1-0 v Charlton AthleticCharlton Athletic 0-1 Peterborough United | Sky Bet League One |
| 40 | Tue 27 Apr 2021 | 42-2 v Doncaster RoversPeterborough United 2-2 Doncaster Rovers | Sky Bet League One |
| 41 | Sat 1 May 2021 | 43-3 v Lincoln CityPeterborough United 3-3 Lincoln City | Sky Bet League One |
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