| 18. Journée | 12.02.2021 | NK Sesvete | - | NK Kustošija | 0:0 | ||||
| 20. Journée | 27.02.2021 | NK Rudeš | - | NK Kustošija | 1:2 | ||||
| 21. Journée | 06.03.2021 | NK Kustošija | - | HNK Cibalia | 2:2 | ||||
| 24. Journée | 02.04.2021 | Hrvatski Dragovoljac | - | NK Kustošija | 1:0 |  |
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| 25. Journée | 10.04.2021 | NK Kustošija | - | NK Osijek II | 1:0 | ||||
| 29. Journée | 01.05.2021 | NK Kustošija | - | NK Inter Zaprešić | 0:1 | ||||
| 30. Journée | 08.05.2021 | NK Croatia Zmijavci | - | NK Kustošija | 1:2 | ||||
| 31. Journée | 12.05.2021 | NK Opatija | - | NK Kustošija | 0:0 | ||||
| 33. Journée | 23.05.2021 | NK BSK Bijelo Brdo | - | NK Kustošija | 3:3 | ||||
| 34. Journée | 29.05.2021 | NK Kustošija | - | Hajduk Split II | 1:3 |
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