On December 17, 2021, the badminton world championships all came out, and only the three national feathers were left, impacting four promotion seats on the sixth match day, He Bingjiao and Han Yuehui, regardless of the victory or defeat, all determined in advance to advance one person to advance.
Men's singles Zhao Junpeng narrowly defeated Nguyen Il 2-1, Singapore's Luo Jianyou swept Wang Gaolun 2-0, Denmark's Antonsen beat Li Zhuoyao 2-0, Malaysia's li zijia narrowly defeated Vitinhus 2-1, India's Srikante beat Lu Guangzu 2-0, Lakshya eliminated Coden 2-0, Planoy eliminated Gemke 2-1, and France's Karl Joo beat Yang Can 2-0.
Men's Singles Quarterfinals: Srikante vs Carccio, Zhao Junpeng vs Lakshya, Luo Jianyou vs Planoy, Li Zijia vs. Andinsen.
Women's singles He Bingjiao eliminated Mia 2-0, Han Yue defeated Li Wenshan 2-0, Zhang Yiman beat Kim Jia-eun 2-0, world number one Dai Ziying narrowly beat Gilmour 2-1, India's sister Sindhu beat Li Meimei 2-0, Japan's Akane Yamaguchi eliminated Shaya Takahashi 2-0, South Korea's first sister Ahn Seokying defeated Wang Zhiyi 2-1, and Thailand's Indanong beat Christopherson 2-0.
Women's singles quarterfinals: Dai Ziying vs Xin Du, He Bingjiao vs Han Yue, Indanong vs Zhang Yiman, Akane Yamaguchi vs An Xianying.
Men's Doubles Tan Qiang / He Jiting 2-1 reverse Xie Dingfeng / Su Weiyi, Olympic champion Li Yang / Wang Qilin narrowly defeated Wu Shifei / Izudin 2-1, Japanese duo Hoki Tsururo / Yugo Kobayashi won 2-0 over the Greymley brothers, Matsui Keichiro / Takeuchi 2-0 victory over Dellu / Willig.
Malaysian duo Wang Yaoxin/Zhang Yuyu narrowly defeated XieTi/Ranki Reddy 2-1, Wu Weisheng/Chen Weiqiang beat Gais/Falk 2-0, Denmark duo Rasmussen/Astrup defeated Ivanov/Sozonov 2-1, and German duo Dessel/Ramsforth beat Torres/Vegade 2-0.
Men's Doubles Quarterfinals: Tan Qiang/ He Jiting vs Wu Weisheng / Chen Weiqiang, Hoki Tsurugi / Yugo Kobayashi vs Keiichiro Matsui / Yoshiaki Takeuchi, Rasmussen / Astrup vs Dessel / Ramsforth, Li Yang / Wang Qilin vs Wang Yaoxin / Zhang Yuyu.
Women's doubles Chen Qingchen / Jia Yifan swept Tsai Wanting / Hong Derek 2-0, Japanese duo Mayu Matsumoto / Nagahara kazuna defeated Wu Yongyao / Yang Yating 2-0, Nao Matsuyama / Chiyo Shida beat Putita / Sha Xili 2-0, Iwanaga Ling / Nakanishi Takaei narrowly defeated Zheng Yu / Li Wenmei 2-1, and the Stoeva sisters from Bulgaria eliminated Birche / Smith 2-0.
South Korean duo Lee So-hee/Shin Seung-hyun beat Wu Zhirou/Yuan Qianying 2-0, Kim Joo-young/Kong Hee-yong eliminated the Danish duo of Tigson/Flurgarde 2-0, and the Thai duo of Ravinda/Zong Gongpan 2-0 to take Ski/Ponnapa.
Women's Doubles Quarterfinals: Chen Qingchen / Jia Yifan vs Matsuyama Nawei / Chiyo Shida, Mayu Matsumoto / Nagahara and Kona vs Stooi Sisters, Lee Shao-hee / Shin Seung-jin vs Ravenda / Zong Gongpan, Kim Joo-young / Kong Hee-young vs Iwa Yong-ling / Nakanishi Takaei.