Jovanovski got by Misaki Doi 6-2, 7-5. Doi had 12 break-point chances but Jovanovski fought off 10 of them, including nine in the tight second set. Jovanovski was able to finish off half of her six break chances in gaining a spot in the quarterfinals.
Olga Govortsova ousted fourth-seeded Donna Vekic 7-6 (7-4), 6-3 behind a pair of second-set breaks and Maria-Teresa Torro-Flor eliminated No. 8-seeded Irina-Camelia Begu, the tournament defending champion, 6-1, 7-5 by converting seven of her eight break opportunities.
No. 3-seeded Yvonne Meusburger had six breaks in a 7-5, 6-4 decision over Petra Cetkovska and fifth-seeded Alexandra Cadantu, despite 10 double faults, breezed by Nadiya Kichenok 6-1, 6-3. Galina Voskoboeva earned a quarterfinal spot opposite Jovanovski with a 6-3, 6-1 win over Julia Glushko, taking 59 percent of the points in the match.
In second-round matches Wednesday between unseeded players, Mandy Minella stopped Vesna Dolonc 4-6, 6-4, 6-3 and Nastassja Burnett edged past Risa Ozaki 6-4, 3-6, 7-6 (7-4) in a match that took 2 1/2 hours.