| 1. Round | 14/08/2020 | NK Opatija | - | Hajduk Split II | 2:1 | ||||
| 2. Round | 23/08/2020 | Hajduk Split II | - | Dinamo Zagreb II | 1:0 |  |
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| 4. Round | 13/09/2020 | NK Croatia Zmijavci | - | Hajduk Split II | 4:0 | ||||
| 8. Round | 28/10/2020 | HNK Cibalia | - | Hajduk Split II | 2:1 |  |
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| 12. Round | 31/10/2020 | NK Osijek II | - | Hajduk Split II | 1:1 | |
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| 13. Round | 08/11/2020 | Hajduk Split II | - | NK Junak Sinj | 1:0 | ||||
| 7. Round | 25/11/2020 | NK Rudeš | - | Hajduk Split II | 4:2 | ||||
| 15. Round | 29/11/2020 | Hajduk Split II | - | NK Međimurje | 4:0 |  |
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| 16. Round | 04/12/2020 | NK Inter Zaprešić | - | Hajduk Split II | 3:1 | |
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| 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 | |
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| 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 |
Croatia