Singapore's top women's singles shuttler Chen Jiayuan earned a place in the round of 16 of the OUE Singapore Open, after beating Iris Wang of the United States 22-20, 18-21, 21-15.
The world No. 40 had a sluggish start and played an error-strewn game, but outlasted her 44th-ranked opponent.
Said Chen: "I took a bit of time to get into the momentum of the match, and I was pretty nervous whenever the scores got close."
She plays Chinese Taipei's Tai Tzu-ying, the world No. 6, next.
In the men's doubles, Chayut Triyachart and Danny Bawa Chrisnanta were left to rue a narrow loss to South Korea's Kim Gi Jung and Kim Sa Rang 19-21, 19-21.
The world No. 21 Singaporeans had last played their opponents at the Asian Games last year, when they also lost in straight games.
In the women's doubles, the new partnership of Vanessa Neo and Shinta Mulia Sari was no match for second seeds Reika Kakiiwa and Miyuki Maeda of Japan. The Singaporeans went down 9-21, 12-21.