| 13. Round | 25/10/2022 | Northampton Town | - | Sutton United | 2:2 | ||||
| 17. Round | 29/10/2022 | Northampton Town | - | Newport County | 1:1 | ||||
| 18. Round | 12/11/2022 | Gillingham FC | - | Northampton Town | 0:2 |  |
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| 19. Round | 19/11/2022 | Bradford City | - | Northampton Town | 1:3 | ||||
| 20. Round | 03/12/2022 | Northampton Town | - | Tranmere Rovers | 0:0 | ||||
| 22. Round | 20/12/2022 | Northampton Town | - | Carlisle United | 2:1 | |
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| 23. Round | 26/12/2022 | Mansfield Town | - | Northampton Town | 1:1 | ||||
| 24. Round | 29/12/2022 | Northampton Town | - | Swindon Town | 1:2 | ||||
| 25. Round | 02/01/2023 | Northampton Town | - | Leyton Orient | 1:0 | ||||
| 26. Round | 07/01/2023 | Salford City | - | Northampton Town | 2:1 | ||||
| 27. Round | 14/01/2023 | Stockport County | - | Northampton Town | 2:0 | ||||
| 34. Round | 25/02/2023 | Colchester United | - | Northampton Town | 0:1 | |
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| 21. Round | 28/02/2023 | Harrogate Town | - | Northampton Town | 1:1 | ||||
| 35. Round | 04/03/2023 | Northampton Town | - | Crawley Town | 1:0 |  |
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| 38. Round | 25/03/2023 | Doncaster Rovers | - | Northampton Town | 0:2 | ||||
| 39. Round | 01/04/2023 | Northampton Town | - | Stevenage FC | 1:1 | ||||
| 40. Round | 07/04/2023 | Newport County | - | Northampton Town | 3:0 |
England