| 18. Round | 12/02/2021 | Hajduk Split II | - | NK Opatija | 2:2 | ||||
| 20. Round | 28/02/2021 | NK BSK Bijelo Brdo | - | Hajduk Split II | 2:0 | ||||
| 21. Round | 07/03/2021 | Hajduk Split II | - | NK Croatia Zmijavci | 2:1 | ||||
| 22. Round | 12/03/2021 | NK Sesvete | - | Hajduk Split II | 2:1 | ||||
| 17. Round | 17/03/2021 | Hajduk Split II | - | NK Kustošija | 1:1 | ||||
| 23. Round | 21/03/2021 | Hajduk Split II | - | NK Solin | 1:2 | ||||
| 24. Round | 02/04/2021 | Hajduk Split II | - | NK Rudeš | 2:2 | ||||
| 25. Round | 11/04/2021 | Hajduk Split II | - | HNK Cibalia | 2:0 | ||||
| 26. Round | 16/04/2021 | NK Dubrava | - | Hajduk Split II | 2:1 |  |
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| 27. Round | 21/04/2021 | Hajduk Split II | - | HNK Orijent Rijeka | 3:3 | ||||
| 28. Round | 24/04/2021 | Hrvatski Dragovoljac | - | Hajduk Split II | 2:1 | ||||
| 29. Round | 02/05/2021 | Hajduk Split II | - | NK Osijek II | 4:3 | |
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| 32. Round | 15/05/2021 | NK Međimurje | - | Hajduk Split II | 1:6 | ||||
| 31. Round | 19/05/2021 | Hajduk Split II | - | NK Dugopolje | 1:2 | ||||
| 33. Round | 23/05/2021 | Hajduk Split II | - | NK Inter Zaprešić | 2:2 | ||||
| 34. Round | 29/05/2021 | NK Kustošija | - | Hajduk Split II | 1:3 | |
Croatia