Rus won 7-5, 6-2 over Anastasia Pavyluchenkova in the first round of Prague on Tuesday.
The 29-year-old overcame five double faults as she saved 9 of 11 break point chances to knock out the No. 6 seed in straight sets. Rus, ranked No. 70, had a solid start to the season as she advanced to the Monterrey semifinals shortly prior to the suspension of play.