All Chinese shuttlers sailed into the next round when the Asian Games badminton individual events kicked off Thursday.
World number one Zhou Mi warmed up a little as she crushed Eva Katrib of Syrian Arab Republic 11-2, 11-1.
Her teammate Gong Ruina also chalked up an easy win against Hong Kong player Ling Wan Ting 11-4 11-5.
First-seeded Zhou will take on Japanese Yonekura Kanako in the quarterfinals while world champion Gong is to meet Li Li of Singapore.
Former Chinese national team player Wang Chen, seeded third, followed her compatriot into the quarterfinal as she brushed asideMalaysian Wong Mew Choo 11-4, 11-7.
The mixed doubles match saw Chinese pass smoothly too as Olympic champions Zhang Jun/Gao Ling beat O Man Tong/Long Ying of Chinese Macao 11-1, 11-2 while Chen Qiqiu/Zhang Jiewen won over Malaysia's Chang Kim Wai/Wong Pei Tty 11-5 11-2.
It was an unlucky day for Thailand as their third-seeded women's singles Sujitra Eakmongkolpaisarn strained her left knee during the match.
According to Thai head coach Sompol Kookasemkit, Sujitra had been hurt seriously, which meant that she had to abstain from the match.