CLEVELAND -- Olympic doubles champion Katerina Siniakova of the Czech Republic cruised into the quarterfinals at Tennis in the Land with a 6-0, 6-0 victory over Nagi Hanatani of Japan on Wednesday.
The 53rd-ranked Siniakova surrendered only four points in her six service games and limited Hanatani to 14 total points in the 45-minute match. It was the first scoreless sweep at the WTA 250 tournament, which was delayed by rain throughout the day.
"Everything was going in and everything was there for me," Siniakova said. "I was really happy with this one because I didn't know anything about her, so I was looking her up on the internet. I thought I played really well."
Siniakova and Barbora Krejcikova became the first Czech doubles team to win gold at the Olympics earlier this month in Tokyo. The three-time Grand Slam champions also won the French Open this year.
The 5-foot-9 Siniakova received a standing ovation from the fans at Jacobs Pavilion when introduced as a gold medalist. She beat eighth-seeded Shelby Rogers in the first round and will face second-seeded Anett Kontaveit of Estonia in the quarterfinals.
"The most special part of this is we can play again in front of you guys," Siniakova said, waving to the crowd. "It's been rough for a while [because of COVID-19 restrictions], but the atmosphere is getting better and better at tournaments."
Kontaveit, ranked 28th, beat No. 61 Caroline Garcia of France 6-3, 6-3 in the round of 16, never allowing Garcia to gain a break point.
"I was consistent, I was brave and I really enjoyed myself today," Kontaveit said.
Top-seeded Daria Kasatkina of Russia, sixth-seeded Magda Linette of Poland, seventh-seeded Sara Sorribes Tormo of Spain, Irina-Camelia Begu of Romania and Aliaksandra Sasnovich of Belarus also reached the quarterfinals.
Hanatani, No. 402, made her WTA debut at the tournament by winning her opener when Anna Blinkova retired after one game.