Dolonc edged eighth-seeded Yaroslava Shvedova 7-6 (8-6), 7-5, winning just four more points over the course of the 150-point match. Dolonc, however, converted six of her 10 break opportunities, going 4-for-5 in the second set.
Shvedova won barely half (41-of-80) of the points on serve on the loss.
No. 7-seeded Galina Voskoboeva advanced to the second round with a 6-3, 6-4 win over Maryna Zanevska by fighting off six of the eight break points she faced. She also had two breaks in each set.
Maria-Teresa Torro-Flor needed just over an hour to dispatch Arina Folts, a local wild-card entrant. Torro-Flor took 64 percent of the points on serve and 62 percent when receiving.
Petra Cetkovska beat Nigina Abduraimova, another Uzbek wild card, 6-3, 7-6 (7-2) by going 5-for-5 in break-point chances.
Also Tuesday, as the first round was completed, Misaki Doi topped Evgeniya Rodina 6-4, 6-2 and Julia Glushko beat Tetyana Arefyeva 6-3, 7-5.
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