| 1. Round | 07/08/2021 | Luton Town | - | Peterborough United | 3:0 | ||||
| 2. Round | 14/08/2021 | Peterborough United | - | Derby County | 2:1 | ||||
| 3. Round | 17/08/2021 | Peterborough United | - | Cardiff City | 2:2 | ||||
| 4. Round | 21/08/2021 | Preston North End | - | Peterborough United | 1:0 | ||||
| 20. Round | 27/11/2021 | Peterborough United | - | Barnsley FC | 0:0 | ||||
| 29. Round | 29/01/2022 | Peterborough United | - | Sheffield United | 0:2 | ||||
| 42. Round | 15/04/2022 | Peterborough United | - | Blackburn Rovers | 2:1 | ||||
| 43. Round | 18/04/2022 | Barnsley FC | - | Peterborough United | 0:2 | ||||
| 44. Round | 23/04/2022 | Peterborough United | - | Nottingham Forest | 0:1 | ||||
| 45. Round | 30/04/2022 | Millwall FC | - | Peterborough United | 3:0 | ||||
| 46. Round | 07/05/2022 | Peterborough United | - | Blackpool FC | 5:0 |
England