No. 4 seed Maria Sakkari of Greece defeated Misaki Doi 6–3, 6–1 in the final match of the Japanese player’s career on Thursday at the Toray Pan Pacific Open in Tokyo.
Sakkari struck 25 winners and did not face a break point in the 65-minute victory, advancing to the quarterfinals to face No. 5 seed Caroline Garcia of France. Doi, 32, ends a pro career that began in 2006 and featured one singles and two doubles titles on the WTA Tour.
Ningbo Open
Russian teenager Diana Shnaider knocked out No. 2 seed Petra Kvitova of the Czech Republic 6–1, 4–6, 6–3 to reach the semifinals in Ningbo, China.Shnaider, 19, saved seven of 10 break points during the 2-hour match and moves on to face another Czech, Linda Fruhvirtova, a 6–0, 6–3 quarterfinal winner against No. 8 seed Lucia Bronzetti of Italy.
Top seed Ons Jabeur of Tunisia moved into the final four with a 7–5, 4–6, 6–1 win against Vera Zvonareva of Russia. Jabeur will meet unseeded Nadia Podoroska of Argentina, who breezed to a 6–1, 6–1 win over the Czech Republic’s Katerina Siniakova.