The 2017 Prague Open runner-up Kristyna Pliskova scored her third Top 20 win of the season by defeating second seed Petra Martic 6-1 7-5 in the second round to produce the biggest upset of the week so far. The 69th-ranked Pliskova, who is playing the Prague Open for the fifth time, never dropped serve in today’s encounter with the Croat.
Third seed Elise Mertens battled past Camila Giorgi 6-4 6-2 to make the quarterfinals. The first set featured 16 deuces, while the second set was a smoother ride for the Belgian.