| 19. Round | 20/02/2021 | NK Dugopolje | - | NK Dubrava | 3:1 |  |
|||
| 20. Round | 27/02/2021 | HNK Orijent Rijeka | - | NK Dugopolje | 0:1 | |
|||
| 21. Round | 05/03/2021 | NK Dugopolje | - | Hrvatski Dragovoljac | 2:2 | ||||
| 22. Round | 13/03/2021 | NK Osijek II | - | NK Dugopolje | 2:0 | ||||
| 23. Round | 20/03/2021 | NK Dugopolje | - | NK Junak Sinj | 2:2 | ||||
| 18. Round | 27/03/2021 | HNK Cibalia | - | NK Dugopolje | 2:1 | ||||
| 25. Round | 11/04/2021 | NK Međimurje | - | NK Dugopolje | 2:1 | ||||
| 28. Round | 24/04/2021 | NK Dugopolje | - | NK Opatija | 0:0 | ||||
| 24. Round | 28/04/2021 | NK Croatia Zmijavci | - | NK Dugopolje | 3:0 | ||||
| 29. Round | 02/05/2021 | Dinamo Zagreb II | - | NK Dugopolje | 2:0 | ||||
| 30. Round | 08/05/2021 | NK Dugopolje | - | NK BSK Bijelo Brdo | 2:0 | ||||
| 32. Round | 15/05/2021 | NK Dugopolje | - | NK Sesvete | 0:1 | ||||
| 31. Round | 19/05/2021 | Hajduk Split II | - | NK Dugopolje | 1:2 | ||||
| 33. Round | 22/05/2021 | NK Solin | - | NK Dugopolje | 2:5 | ||||
| 34. Round | 29/05/2021 | NK Dugopolje | - | NK Rudeš | 1:3 |
Croatia