| 1. Round | 05/08/2017 | Accrington Stanley | - | Colchester United | 3:1 | ||||
| 2. Round | 12/08/2017 | Colchester United | - | Stevenage FC | 1:1 | ||||
| 13. Round | 14/10/2017 | Colchester United | - | Carlisle United | 0:1 | ||||
| 15. Round | 21/10/2017 | Coventry City | - | Colchester United | 0:0 | ||||
| 16. Round | 28/10/2017 | Colchester United | - | Crewe Alexandra | 3:1 | ||||
| 18. Round | 18/11/2017 | Colchester United | - | Morecambe FC | 0:0 |
Scotland