2020 Yonex Thailand Open

The Yonex Thailand Open was a badminton tournament which took place at the Impact Arena in Thailand from 12 to 17 January 2021. It had a total purse of $1,000,000.

Tournament
The Yonex Thailand Open was the eighth tournament of the 2020 BWF World Tour and also part of the Thailand Open championships, which had been held since 1984. This tournament was organized by Badminton Association of Thailand and sanctioned by the BWF. It was the first of three BWF tournaments taking place in Thailand in January 2021. Participation in both Thailand Opens was mandatory to qualify for the 2020 BWF World Tour Finals.

Four out of five world number ones withdrew from all three tournaments. The Chinese team withdrew from all three tournaments after failing to get permission to travel to Thailand; affected players include Chen Qingchen and Jia Yifan (women's doubles), and Zheng Siwei and Huang Yaqiong (mixed doubles). In addition, the Japanese team withdrew from the tournaments following the positive COVID-19 diagnosis of Kento Momota (men's singles). Following Kevin Sanjaya Sukamuljo's positive COVID-19 diagnosis, he and Marcus Fernaldi Gideon (men's doubles) withdrew from the tournaments.

Venue
This international tournament was held at the Impact Arena in Pak Kret, Nonthaburi, Thailand.

Point distribution
Below is the point distribution for each phase of the tournament based on the BWF points system for the BWF World Tour Super 1000 event.

Prize money
The total prize money for this tournament was US$1,000,000. Distribution of prize money was in accordance with BWF regulations.

Seeds

 * 1) 🇯🇵 Kento Momota (withdrew)
 * 2) Chou Tien-chen (semi-finals)
 * 3) Anders Antonsen (first round)
 * 4)  Viktor Axelsen (champion)
 * 5) Anthony Sinisuka Ginting (semi-finals)
 * 6) Jonatan Christie (quarter-finals)
 * 7) 🇭🇰 Ng Ka Long (final)
 * 8) Lee Zii Jia (quarter-finals)

Seeds

 * 1) Tai Tzu-ying (final)
 * 2) 🇯🇵 Akane Yamaguchi (withdrew)
 * 3) 🇯🇵 Nozomi Okuhara (withdrew)
 * 4) 🇹🇭 Ratchanok Intanon (quarter-finals)
 * 5) 🇪🇸 Carolina Marín (champion)
 * 6) 🇮🇳 P. V. Sindhu (first round)
 * 7) 🇰🇷 An Se-young (semi-finals)
 * 8) 🇨🇦 Michelle Li (quarter-finals)

Seeds

 * 1) Marcus Fernaldi Gideon / Kevin Sanjaya Sukamuljo (withdrew)
 * 2) Mohammad Ahsan / Hendra Setiawan (quarter-finals)
 * 3) 🇯🇵 Takeshi Kamura / Keigo Sonoda (withdrew)
 * 4) 🇯🇵 Hiroyuki Endo / Yuta Watanabe (withdrew)
 * 5) Fajar Alfian / Muhammad Rian Ardianto (second round)
 * 6)  Lee Yang / Wang Chi-lin (champions)
 * 7) 🇰🇷 Choi Sol-gyu / Seo Seung-jae (semi-finals)
 * 8) Aaron Chia / Soh Wooi Yik (first round)

Seeds

 * 1) 🇯🇵 Yuki Fukushima / Sayaka Hirota (withdrew)
 * 2) 🇯🇵 Mayu Matsumoto / Wakana Nagahara (withdrew)
 * 3) 🇰🇷 Lee So-hee / Shin Seung-chan (semi-finals)
 * 4) 🇰🇷 Kim So-yeong / Kong Hee-yong (semi-finals)
 * 5)  Greysia Polii / Apriyani Rahayu (champions)
 * 6) 🇰🇷 Chang Ye-na / Kim Hye-rin (quarter-finals)
 * 7) 🇹🇭 Jongkolphan Kititharakul / Rawinda Prajongjai (final)
 * 8) 🇯🇵 Nami Matsuyama / Chiharu Shida (withdrew)

Seeds

 * 1) 🇹🇭 Dechapol Puavaranukroh / Sapsiree Taerattanachai (champions)
 * 2) Praveen Jordan / Melati Daeva Oktavianti (final)
 * 3) 🇯🇵 Yuta Watanabe / Arisa Higashino (withdrew)
 * 4) 🇰🇷 Seo Seung-jae / Chae Yoo-jung (semi-finals)
 * 5) Chan Peng Soon / Goh Liu Ying (quarter-finals)
 * 6) Hafiz Faizal / Gloria Emanuelle Widjaja (first round)
 * 7) 🏴󠁧󠁢󠁥󠁮󠁧󠁿 Marcus Ellis / Lauren Smith (second round)
 * 8) 🇭🇰 Tang Chun Man / Tse Ying Suet (second round)