1st(1st leg) Vitosha Bistritsa - FC Dunav Ruse 0:1 (0:0)
2nd (2nd leg) FC Dunav Ruse - Vitosha Bistritsa 3:1 (3:0)
1st(1st leg): 06/05/2018 15:30 2nd (2nd leg): 14/05/2018 15:30 Winner: FC Dunav Ruse
1st(1st leg) Etar Veliko Tarnovo - Pirin Blagoevgrad 2:1 (2:0)
2nd (2nd leg) Pirin Blagoevgrad - Etar Veliko Tarnovo 0:1 (0:0)
1st(1st leg): 07/05/2018 18:00 2nd (2nd leg): 14/05/2018 18:30 Winner: Etar Veliko Tarnovo