| 1 | Sat 7 Aug 2021 | 30-3 v Luton TownLuton Town 3-0 Peterborough United | Sky Bet Championship |
| 2 | Sat 14 Aug 2021 | 3 2-1 v Derby CountyPeterborough United 2-1 Derby County | Sky Bet Championship |
| 3 | Tue 17 Aug 2021 | 32-2 v Cardiff CityPeterborough United 2-2 Cardiff City | Sky Bet Championship |
| 4 | Sat 21 Aug 2021 | 30-1 v Preston North EndPreston North End 1-0 Peterborough United | Sky Bet Championship |
| 5 | Sat 28 Aug 2021 | 30-1 v West Bromwich AlbionPeterborough United 0-1 West Bromwich Albion | Sky Bet Championship |
| 6 | Sat 11 Sep 2021 | 3 2-6 v Sheffield UnitedSheffield United 6-2 Peterborough United | Sky Bet Championship |
| 7 | Tue 14 Sep 2021 | 31-3 v ReadingReading 3-1 Peterborough United | Sky Bet Championship |
| 8 | Sat 18 Sep 2021 | 3 3-0 v Birmingham CityPeterborough United 3-0 Birmingham City | Sky Bet Championship |
| 9 | Fri 24 Sep 2021 | 3 0-3 v Coventry CityCoventry City 3-0 Peterborough United | Sky Bet Championship |
| 10 | Wed 29 Sep 2021 | 30-0 v AFC BournemouthPeterborough United 0-0 AFC Bournemouth | Sky Bet Championship |
| 11 | Sat 2 Oct 2021 | 32-3 v Bristol CityPeterborough United 2-3 Bristol City | Sky Bet Championship |
| 12 | Sat 16 Oct 2021 | 30-2 v MiddlesbroughMiddlesbrough 2-0 Peterborough United | Sky Bet Championship |
| 13 | Wed 20 Oct 2021 | 32-1 v Hull CityHull City 1-2 Peterborough United | Sky Bet Championship |
| 14 | Sat 23 Oct 2021 | 32-1 v Queens Park RangersPeterborough United 2-1 Queens Park Rangers | Sky Bet Championship |
| 15 | Sat 30 Oct 2021 | 30-3 v Swansea CitySwansea City 3-0 Peterborough United | Sky Bet Championship |
| 16 | Sat 6 Nov 2021 | 30-1 v FulhamPeterborough United 0-1 Fulham | Sky Bet Championship |
| 17 | Sat 20 Nov 2021 | 30-2 v Stoke CityStoke City 2-0 Peterborough United | Sky Bet Championship |
| 18 | Wed 24 Nov 2021 | 30-4 v Blackburn RoversBlackburn Rovers 4-0 Peterborough United | Sky Bet Championship |
| 19 | Sat 27 Nov 2021 | 3 0-0 v BarnsleyPeterborough United 0-0 Barnsley | Sky Bet Championship |
| 20 | Sat 4 Dec 2021 | 3 0-2 v Nottingham ForestNottingham Forest 2-0 Peterborough United | Sky Bet Championship |
| 21 | Sat 11 Dec 2021 | 32-1 v MillwallPeterborough United 2-1 Millwall | Sky Bet Championship |
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