| 14. Jornada | 21.11.2020 | NK Kustošija | - | NK Opatija | 2:1 | ||||
| 15. Jornada | 29.11.2020 | Dinamo Zagreb II | - | NK Kustošija | 1:1 | ||||
| 19. Jornada | 20.02.2021 | NK Kustošija | - | NK Solin | 3:2 | ||||
| 20. Jornada | 27.02.2021 | NK Rudeš | - | NK Kustošija | 1:2 | ||||
| 22. Jornada | 12.03.2021 | NK Dubrava | - | NK Kustošija | 3:3 | ||||
| 17. Jornada | 17.03.2021 | Hajduk Split II | - | NK Kustošija | 1:1 | ||||
| 23. Jornada | 20.03.2021 | NK Kustošija | - | HNK Orijent Rijeka | 1:1 | ||||
| 24. Jornada | 02.04.2021 | Hrvatski Dragovoljac | - | NK Kustošija | 1:0 | ||||
| 26. Jornada | 17.04.2021 | NK Junak Sinj | - | NK Kustošija | 1:0 | ||||
| 28. Jornada | 25.04.2021 | NK Međimurje | - | NK Kustošija | 0:4 | ||||
| 32. Jornada | 16.05.2021 | NK Kustošija | - | Dinamo Zagreb II | 1:0 | ||||
| 33. Jornada | 23.05.2021 | NK BSK Bijelo Brdo | - | NK Kustošija | 3:3 | ||||
| 34. Jornada | 29.05.2021 | NK Kustošija | - | Hajduk Split II | 1:3 |
Croacia