| 1. Round | 14/08/2020 | NK Kustošija | - | NK Sesvete | 1:4 | ||||
| 2. Round | 22/08/2020 | NK Solin | - | NK Kustošija | 1:2 | ||||
| 3. Round | 29/08/2020 | NK Kustošija | - | NK Rudeš | 0:0 | ||||
| 4. Round | 12/09/2020 | HNK Cibalia | - | NK Kustošija | 1:2 | ||||
| 5. Round | 16/09/2020 | NK Kustošija | - | NK Dubrava | 0:0 | ||||
| 6. Round | 20/09/2020 | HNK Orijent Rijeka | - | NK Kustošija | 1:1 |  |
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| 7. Round | 26/09/2020 | NK Kustošija | - | Hrvatski Dragovoljac | 0:0 | ||||
| 8. Round | 30/09/2020 | NK Osijek II | - | NK Kustošija | 1:0 | ||||
| 9. Round | 03/10/2020 | NK Kustošija | - | NK Junak Sinj | 3:2 | ||||
| 10. Round | 17/10/2020 | NK Dugopolje | - | NK Kustošija | 2:0 | ||||
| 11. Round | 24/10/2020 | NK Kustošija | - | NK Međimurje | 0:0 | ||||
| 12. Round | 30/10/2020 | NK Inter Zaprešić | - | NK Kustošija | 2:2 | ||||
| 13. Round | 07/11/2020 | NK Kustošija | - | NK Croatia Zmijavci | 4:2 | ||||
| 16. Round | 05/12/2020 | NK Kustošija | - | NK BSK Bijelo Brdo | 0:0 | |
Cameroon