| 1. Round | 12/09/2020 | Walsall FC | - | Grimsby Town | 1:0 |  |
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| 2. Round | 19/09/2020 | Grimsby Town | - | Salford City | 0:4 | ||||
| 3. Round | 13/10/2020 | Cheltenham Town | - | Grimsby Town | 1:3 | ||||
| 9. Round | 27/10/2020 | Forest Green Rovers | - | Grimsby Town | 1:0 | ||||
| 14. Round | 24/11/2020 | Crawley Town | - | Grimsby Town | 1:2 | ||||
| 15. Round | 01/12/2020 | Grimsby Town | - | Exeter City | 1:4 |
England
Nigeria