8. Round | 30/09/2020 | Hrvatski Dragovoljac | - | NK Opatija | 1:1 | ![]() |
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9. Round | 03/10/2020 | NK Opatija | - | NK Osijek II | 1:1 | ||||
10. Round | 17/10/2020 | NK Junak Sinj | - | NK Opatija | 0:2 | ![]() |
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12. Round | 30/10/2020 | NK Međimurje | - | NK Opatija | 3:0 | ![]() |
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14. Round | 21/11/2020 | NK Kustošija | - | NK Opatija | 2:1 | ||||
13. Round | 25/11/2020 | NK Opatija | - | NK Inter Zaprešić | 3:2 | ||||
15. Round | 28/11/2020 | NK Opatija | - | NK Croatia Zmijavci | 2:3 | ||||
16. Round | 05/12/2020 | NK Opatija | - | Dinamo Zagreb II | 2:1 | ||||
17. Round | 13/12/2020 | NK BSK Bijelo Brdo | - | NK Opatija | 1:1 |