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| 1st(1st leg) | Mačva Šabac | - | Mladost Lučani | 1:1 (1:1) | ||
| 2nd (2nd leg) | Mladost Lučani | - | Mačva Šabac | 4:0 (2:0) | ||
| 1st(1st leg): 18/04/2018 15:00 | 2nd (2nd leg): 09/05/2018 16:30 | Winner: Mladost Lučani | ||||
| 1st(1st leg) | FK Čukarički | - | Partizan | 4:2 (2:2) | ||
| 2nd (2nd leg) | Partizan | - | FK Čukarički | 2:0 (0:0) | ||
| 1st(1st leg): 18/04/2018 17:30 | 2nd (2nd leg): 09/05/2018 19:00 | Winner: Partizan | ||||
