Both women will have a chance to earn their first career title when they play Sunday.
Dushevina downed Switzerland's Timea Bacsinszky 6-2, 6-4. Hradecka rallied to beat Germany's Andrea Petkovic 6-7 (5-7), 7-5, 7-5.
"I'm so happy because I'm in the final," Hradecka said. "I know it's going to be a tough match (Sunday), but I'll just try and play my best."
The 22-year-old Dushevina, a runner-up three times in her career, also reached the semis two weeks ago at the Prague Open.
"(Sunday) is going to be my fifth match here and I hope it's going to be good," Hradecka, a native of the Czech Republic, said.
Sunday's winner will collect $37,000.
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