| 1. Round | 10/08/2024 | Fleetwood Town | - | Grimsby Town | 1:0 |  |
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| 2. Round | 17/08/2024 | Grimsby Town | - | Cheltenham Town | 3:2 |  |
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| 3. Round | 22/08/2024 | Notts County | - | Grimsby Town | 4:1 | ||||
| 16. Round | 16/11/2024 | Newport County | - | Grimsby Town | 0:0 | ||||
| 17. Round | 23/11/2024 | Grimsby Town | - | Colchester United | 0:1 | ||||
| 18. Round | 03/12/2024 | Grimsby Town | - | Accrington Stanley | 5:2 | |
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| 19. Round | 07/12/2024 | Morecambe FC | - | Grimsby Town | 0:3 | ||||
| 20. Round | 14/12/2024 | Grimsby Town | - | Crewe Alexandra | 0:2 | ||||
| 21. Round | 21/12/2024 | Swindon Town | - | Grimsby Town | 3:1 | ||||
| 22. Round | 26/12/2024 | Grimsby Town | - | Harrogate Town | 2:1 | ||||
| 23. Round | 29/12/2024 | Grimsby Town | - | Port Vale FC | 3:0 | |
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| 24. Round | 01/01/2025 | Accrington Stanley | - | Grimsby Town | 3:2 | ||||
| 25. Round | 04/01/2025 | Bradford City | - | Grimsby Town | 3:1 | ||||
| 27. Round | 18/01/2025 | Grimsby Town | - | Chesterfield FC | 1:1 | |
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| 39. Round | 28/03/2025 | Colchester United | - | Grimsby Town | 1:2 | ||||
| 40. Round | 01/04/2025 | Crewe Alexandra | - | Grimsby Town | 2:0 | ||||
| 41. Round | 05/04/2025 | Grimsby Town | - | Morecambe FC | 3:1 | ||||
| 42. Round | 12/04/2025 | Harrogate Town | - | Grimsby Town | 2:2 |
Wales