1. Round | 05/08/2017 | Accrington Stanley | - | Colchester United | 3:1 | ||||
2. Round | 12/08/2017 | Colchester United | - | Stevenage FC | 1:1 | ||||
3. Round | 19/08/2017 | Luton Town | - | Colchester United | 3:0 | ||||
4. Round | 26/08/2017 | Colchester United | - | Forest Green Rovers | 5:1 | ||||
5. Round | 02/09/2017 | Cambridge United | - | Colchester United | 1:0 | ||||
6. Round | 09/09/2017 | Colchester United | - | Crawley Town | 3:1 | ||||
14. Round | 17/10/2017 | Newport County | - | Colchester United | 1:2 | ||||
16. Round | 28/10/2017 | Colchester United | - | Crewe Alexandra | 3:1 | ||||
20. Round | 25/11/2017 | Notts County | - | Colchester United | 2:1 |