WASHINGTON - China's top tennis player Zheng Qinwen and Buyunchaokete advanced to the next round, while Wu Yibing exited the Miami Open on Thursday.

Ninth seed Zheng progressed in the women's event with a 6-1, 7-5 victory over America's Lauren Davis.

Zheng served 12 aces and converted four of seven break points to sweep past her opponent in an hour and 17 minutes. The Olympic gold medalist will meet host player Taylor Townsend in the round of 32.

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In the men's competition, Bu advanced to the second round with a 6-4, 6-2 win over former world No. 8 Cameron Norrie.

Bu broke the Briton's serve in the opening game and didn't look back as he cruised to victory in an hour and 20 minutes.

World No. 69 Bu will meet Australian 10th seed Alex de Minaur in the next round.

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Wu exited the tournament with 7-6 (3), 4-6, 6-3 first-round defeat to Italy's Matteo Arnaldi.

Wu, who became the first Chinese mainland player to lift an ATP Tour trophy by winning the 2023 Dallas Open title, hit 23 winners but was undone by 47 unforced errors.

World No. 35 Arnaldi was ruthless at times as he served 16 aces and struck 31 winners to take the match in just over two-and-a-half hours.

In the women's doubles, China's Xu Yifan and Yang Zhaoxuan reached the last 16 by overcoming Chan Hao-ching from Chinese Taipei and Russia's Veronika Kudermetova 7-5, 6-4.