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 | ||||
18. Round | 12/02/2021 | Hajduk Split II | - | NK Opatija | 2:2 | ||||
20. Round | 27/02/2021 | NK Solin | - | NK Opatija | 1:1 | ||||
23. Round | 20/03/2021 | NK Opatija | - | NK Dubrava | 2:1 | ||||
24. Round | 02/04/2021 | HNK Orijent Rijeka | - | NK Opatija | 4:1 | ||||
32. Round | 16/05/2021 | NK Croatia Zmijavci | - | NK Opatija | 1:3 |