Sofia Kenin knocked out 10th-seeded Xinyu Wang of China 6-1, 6-4 in the first round of the Toray Pan Pacific Open on Tuesday in Tokyo.

Kenin saved the only break point she faced in the 78-minute win and advanced to face Denmark’s Clara Tauson, a 6-2, 6-3 winner against Japan’s Nao Hibino.

No. 9 Katie Boulter of England, the only other seeded player in action, converted all five break points in a 6-1, 6-4 defeat of Australia’s Priscilla Hon. Japan’s Moyuka Uchijima outlasted Britain’s Mika Stojsavljevic 6-4, 6-7 (7), 7-6 (6) in nearly three hours. McCartney Kessler and Japan’s Kyoka Okamura and Sayaka Ishii also advanced.

Guangzhou Open

No. 1 seed Katerina Siniakova of the Czech Republic crushed Croatia’s Petra Martic 6-2, 6-1 in 63 minutes in first-round action in China.

Siniakova’s countrywoman and No. 2 seed Marie Bouzkova also cruised with a 6-3, 6-1 defeat of Suzan Lamens of the Netherlands. No. 3 seed Yue Yuan of China, No. 5 Diane Parry of France and No. 7 Jessica Bouzas Maneiro of Spain also advanced in straight sets, as did unseeded Americans Caroline Dolehide, Alycia Parks and Bernarda Pera.

Two seeded players were eliminated, as Italy’s Lucia Bronzetti defeated No. 4 Elina Avanesyan of Armenia 6-1, 6-4 and China’s Shuai Zhang ousted No. 8 Kamilla Rakhimova of Russia 6-2, 6-1 in 58 minutes. China’s Xiyu Wang and Han Shi and Thailand’s Mananchaya Sawangkaew were also winners.

–Field Level Media