1) Chou Tien-chen
2) Angus Ng Ka Long
3) Li Junhui
4) Liu Yuchen
Explanation:
The Toyota Thailand Open (Badminton) 2019 was held at Indoor Stadium Huamark in Bangkok, Thailand from July 30 to August 4, 2019. It was the sixteenth tournament of the 2019 Badminton World Federation (BWF) World Tour and a part of the Thailand Open championships. The tournament was organized by the Badminton Association of Thailandwith sanction from the BWF, with the total prize money of $350,000. It was Super 500 level tournament.