| 19. Round | 20/02/2021 | NK BSK Bijelo Brdo | - | NK Croatia Zmijavci | 1:2 |  |
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| 22. Round | 14/03/2021 | NK Croatia Zmijavci | - | NK Junak Sinj | 2:2 | ||||
| 23. Round | 19/03/2021 | NK Sesvete | - | NK Croatia Zmijavci | 2:1 | ||||
| 26. Round | 17/04/2021 | NK Croatia Zmijavci | - | NK Međimurje | 4:2 |  |
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| 27. Round | 21/04/2021 | NK Rudeš | - | NK Croatia Zmijavci | 2:1 | ||||
| 28. Round | 25/04/2021 | NK Croatia Zmijavci | - | NK Inter Zaprešić | 2:1 | ||||
| 24. Round | 28/04/2021 | NK Croatia Zmijavci | - | NK Dugopolje | 3:0 | ||||
| 29. Round | 01/05/2021 | HNK Cibalia | - | NK Croatia Zmijavci | 3:0 | ||||
| 31. Round | 12/05/2021 | NK Dubrava | - | NK Croatia Zmijavci | 1:1 |
Croatia