3. Round | 12/08/2018 | NK Osijek | - | NK Istra 1961 | 3:0 | ||||
4. Round | 18/08/2018 | NK Istra 1961 | - | Lokomotiva Zagreb | 1:2 | ||||
5. Round | 26/08/2018 | HNK Rijeka | - | NK Istra 1961 | 3:3 | ||||
6. Round | 02/09/2018 | NK Istra 1961 | - | HNK Gorica | 0:2 | ||||
7. Round | 14/09/2018 | NK Inter Zaprešić | - | NK Istra 1961 | 1:2 | ||||
8. Round | 23/09/2018 | NK Istra 1961 | - | Hajduk Split | 2:4 | ||||
12. Round | 27/10/2018 | NK Istra 1961 | - | NK Osijek | 1:1 | ||||
13. Round | 03/11/2018 | Lokomotiva Zagreb | - | NK Istra 1961 | 1:0 | ||||
14. Round | 11/11/2018 | NK Istra 1961 | - | HNK Rijeka | 1:2 | ||||
17. Round | 08/12/2018 | Hajduk Split | - | NK Istra 1961 | 3:1 |