| 23. Round | 10/04/2021 | Flint Town United | - | Cardiff Metropolitan | 2:0 | ||||
| 24. Round | 13/04/2021 | Cardiff Metropolitan | - | Newtown AFC | 2:2 | ||||
| 25. Round | 17/04/2021 | Cefn Druids | - | Cardiff Metropolitan | 1:2 |  |
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| 26. Round | 20/04/2021 | Cardiff Metropolitan | - | Haverfordwest County | 6:1 |  |
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| 27. Round | 23/04/2021 | Aberystwyth Town | - | Cardiff Metropolitan | 1:1 | |
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| 28. Round | 27/04/2021 | Haverfordwest County | - | Cardiff Metropolitan | 0:2 | ||||
| 29. Round | 30/04/2021 | Cardiff Metropolitan | - | Aberystwyth Town | 5:1 | |
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| 30. Round | 04/05/2021 | Newtown AFC | - | Cardiff Metropolitan | 2:3 | |
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| 31. Round | 08/05/2021 | Cardiff Metropolitan | - | Cefn Druids | 6:0 | |
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| 32. Round | 15/05/2021 | Cardiff Metropolitan | - | Flint Town United | 2:1 | |
England