Top seed Karolina Pliskova started Friday in the last-16 at the inaugural Zhengzhou Open and ended the day in the semi-finals after defeating Polona Hercog and Sofia Kenin in succession.
Pliskova’s match against Slovenian Hercog was suspended on Wednesday due to rain with the score at 6-3 2-5 and she only returned to court two days later after rain washed out Thursday’s matches.
The Czech claimed five games in a row to see off Hercog 6-3 7-5 and carried that form into her quarter-final clash with sixth-seeded American Kenin, winning 6-4 4-6 6-1.
Pliskova now meets Ajla Tomljanovic after the Australian beat home favorite Zheng Saisai 6-1 6-7(4) 6-4.
The upset of the day saw France’s unseeded Kristina Mladenovic beat second seed Elina Svitolina 6-4 4-6 6-3 in the final match of the day that lasted two hours and 45 minutes.
Svitolina, who recently moved up to third in the rankings, was broken eight times and let down by an inconsistent second serve, winning only 39% of her those points.