| 19. Jornada | 20.02.2021 | NK Kustošija | - | NK Solin | 3:2 | ||||
| 27. Jornada | 21.04.2021 | NK Kustošija | - | NK Dugopolje | 1:0 | ||||
| 28. Jornada | 25.04.2021 | NK Međimurje | - | NK Kustošija | 0:4 | ||||
| 30. Jornada | 08.05.2021 | NK Croatia Zmijavci | - | NK Kustošija | 1:2 | ||||
| 31. Jornada | 12.05.2021 | NK Opatija | - | NK Kustošija | 0:0 | ||||
| 34. Jornada | 29.05.2021 | NK Kustošija | - | Hajduk Split II | 1:3 |
Austria