Zavatska, seeded No. 3, defeated Czech Amelie Smejkalova 6-1, 6-4, Ukrinform reports.
Zavatska will play for a place in the main draw against Swiss Conny Perrin, who defeated Czech Tereza Martincova 6-0, 7-5.
Read also: Wimbledon winner loses in first roundThe Prague Open tournament will run until 26 July.
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