Ratchanok, the Asian winner, world No.5 and this year's Thailand Masters champion, always became the last Thai survivor in several major competitions including the recent All-England World Superseries Premier, in which the 2013 world champion went down in straight games to Spaniard Carolina Marin, title-holders, world No.1 and successive two-time world champion, in the quarter-finals.
However, things turned sour for sensation Ratchanok this time as she was eliminated just in the second round after going down to world No.20 He Bingjiao 21-14 18-21 13-21.
However, many Thai players had paraded to the quarter-finals, with eighth seeded Busanan Ongbumrungphan brushing off Dane Mia Blichfeldt 21-18 21-15. Hoping for a strong comeback after going down in the last year's showdown, Busanan will next face a daunting task in the quarter-final match against third seeded and Incheon Asian Games gold medallist Wang Yihan from China. Team-mate Porntip Buranaprasertsuk, showed no mercy to Maria Ulitina by crushing the Ukrainian rival 21-13 21-14 to go up against Chinese fifth seeded and title-holder Sun Yu in the quarter-finals.
In the men's singles, 16th seeded Tanongsak Saensomboonsuk thrashed Indian Sameer Verma in straight games 21-15 21-19 to make it through to the quarter-finals, in which he is due to take on another Indian, H.S. Prannoy.
Bodin Issara/Nipitphon Puangpuapetch akeep the Thai men's doubles hopes alive when they beat Germans Fabian Holzer/Johannes Pistorius 21-8 23-21 to next challenge Danes Mathias Christians/David Daugaard in the quarter-finals.
Two Thai pairings advanced to the quarter-finals in the women's doubles, with eight seeds Jongkolphan Kititharakul/Rawinda Prajongjai taking on Malaysian fourth seeds Kah Vivian Hoo/Khe Wai Woon and Puttita Supajirakul/Sapsiree Taerattanachai playing Chinese Tang Jinhua/Huang Yaqiong.
In the mixed doubles, Bodin Issara/Savitree Amitrapai will meet England's Matthew Nottingham/Emily Westwood in the quarter-finals, while Dechapol Puavaranukroh/Sapsiree Taerattanachai will be pitted against Chinese Wang Yilyu/Chen Qingchen.