| 1. Journée | 12.09.2020 | Walsall FC | - | Grimsby Town | 1:0 | ||||
| 5. Journée | 10.10.2020 | Bolton Wanderers | - | Grimsby Town | 0:0 | ||||
| 13. Journée | 21.11.2020 | Tranmere Rovers | - | Grimsby Town | 5:0 | ||||
| 14. Journée | 24.11.2020 | Crawley Town | - | Grimsby Town | 1:2 | ||||
| 15. Journée | 01.12.2020 | Grimsby Town | - | Exeter City | 1:4 | ||||
| 16. Journée | 05.12.2020 | Colchester United | - | Grimsby Town | 2:1 | ||||
| 24. Journée | 16.01.2021 | Grimsby Town | - | Southend United | 0:0 | ||||
| 30. Journée | 27.04.2021 | Exeter City | - | Grimsby Town | 3:2 | ||||
| 45. Journée | 01.05.2021 | Grimsby Town | - | Port Vale FC | 1:0 | ||||
| 46. Journée | 08.05.2021 | Cambridge United | - | Grimsby Town | 3:0 |
Angleterre