Kunlavut Vitidsarn, Supanida Katethong and mixed pair Dechapol Puavaranukroh and Sapsiree Taerattanachai won their opening matches at the US$1.3 million BWF Indonesia Open in Jakarta on Tuesday.
Eighth seed Kunlavut defeated Loh Kean Yew of Singapore 21-13, 21-10 to set up a last-16 clash with either HS Prannoy or Priyanshu Rajawat, both from India, at the World Tour Super 1000 event.
Thailand Open champion Supanida knocked out fellow Thai Pornpawee Chochuwong 21-17, 21-18 and will play Gregoria Mariska Tunjung of Indonesia next.
Tunjung defeated compatriot Putri Kusuma Wardini 21-14 21-17.
Sixth seeds Dechapol and Sapsiree, meanwhile, battled past compatriots Supak Jomkoh and Supissara Paewsampran 21-15, 18-21, 23-21.
They will play Adnan Maulana and Nita Violina Marwah of Indonesia in the last 16.
Kantaphon Wangcharoen also reached the last 16 of the men's singles event after he defeated Chico Aura DWI Wardoyo of Indonesia 21-16, 21-9.
Another women's singles hope Pornpicha Choeikeewong also progressed, overcoming Michelle Li of Canada 19-21, 21-9, 23-21.
Kantaphon will next face fourth seed Anders Antonsen of Denmark, while Pornpicha will play either Korean top seed An Se-Young, the Singapore Open winner on Sunday, or Tomoka Miyazaki of Japan.
Women's doubles pairs Jongkolphan Kititharakul and Rawinda Prajongjai and Ornnicha Jongsathapornparn and Sukitta Suwachai both lost in their first round matches on Tuesday.
In other results, women's sixth seed Wang Zhiyi of China downed Goh Jin Wei of Malaysia 21-15, 21-17, eighth seed He Bingjiao of China defeated Line Hojmark Kjaersfeldt of Denmark 13-21, 21-15, 21-17 while Kirtsty Gilmour of Scotland beat Nguyen Thuy Linh of Vietnam 21-10, 21-18.
In the men's singles openers, Lee Zii Jia of Malaysia defeated Angus Ng Ka Long of Hong Kong 21-17, 21-16, Lakshya Sen of India ousted Kanta Tsuneyama of Japan 21-12, 21-17 and Weng Hongyang of China edged Kira George of India 11-21, 21-10, 22-20.