| 1. Journée | 16.08.2020 | NK Osijek II | - | HNK Orijent Rijeka | 0:0 |  |
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| 2. Journée | 21.08.2020 | Hrvatski Dragovoljac | - | NK Osijek II | 2:1 | ||||
| 4. Journée | 13.09.2020 | NK Osijek II | - | NK Junak Sinj | 2:0 | ||||
| 5. Journée | 16.09.2020 | NK Dugopolje | - | NK Osijek II | 0:1 | ||||
| 6. Journée | 20.09.2020 | NK Osijek II | - | NK Međimurje | 6:0 | ||||
| 7. Journée | 26.09.2020 | NK Inter Zaprešić | - | NK Osijek II | 0:1 | ||||
| 8. Journée | 30.09.2020 | NK Osijek II | - | NK Kustošija | 1:0 | ||||
| 9. Journée | 03.10.2020 | NK Opatija | - | NK Osijek II | 1:1 | ||||
| 10. Journée | 19.10.2020 | NK Osijek II | - | Dinamo Zagreb II | 1:1 | ||||
| 11. Journée | 25.10.2020 | NK BSK Bijelo Brdo | - | NK Osijek II | 0:0 | ||||
| 12. Journée | 31.10.2020 | NK Osijek II | - | Hajduk Split II | 1:1 |  |
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| 13. Journée | 06.11.2020 | NK Sesvete | - | NK Osijek II | 1:5 | ||||
| 14. Journée | 22.11.2020 | NK Osijek II | - | NK Solin | 2:0 | ||||
| 15. Journée | 30.11.2020 | NK Rudeš | - | NK Osijek II | 1:0 | ||||
| 16. Journée | 06.12.2020 | NK Osijek II | - | HNK Cibalia | 0:0 | |
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| 17. Journée | 12.12.2020 | NK Dubrava | - | NK Osijek II | 2:1 | |
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