Berikut daftar pemain unggulan yang kalah di babak ketiga atau 16 besar Kejuaraan Dunia 2021
MS - Kantaphon Wangcharoen (Thailand/16) vs Loh Kean Yew (Singapura): 4-21, 7-21
MS - Lee Cheuk Yiu (Hong Kong/13) vs Anders Antonsen (Denmark/3): 9-21, 11-21
MS - Rasmus Gemke (Denmark/11) vs Prannoy H.S (India): 21-16, 8-21, 20-22
WS - Pusarla V. Sindhu (India/6) vs Pornpawee Chochuwong (Thailand/9): 21-14, 21-18
WS - Kim Gauen (Korea Selatan/16) vs Zhang Yi Man (China): 16-21, 19-21
WS - Han Yue (China) vs Michelle Li (Kanada/10): 21-19, 21-19
WS - He Bing Jiao (China/8) vs Mia Blichfeldt (Denmark/13): 21-13, 21-10
WS - Wang Zhi Yi (China/14) vs An Se-young (Korea Selatan/5): 21-17, 20-22, 19-21
WS- Sayaka Takahashi (Jepang/12) vs Akane Yamaguchi (Jepang/2): 15-21, 18-21
MD - Satwiksairaj Rankireddy/Chirag Shetty (India/8) vs Ong Yew Sin/Teo Ee Yi (Malaysia/9): 20-22, 21-18, 15-21
MD - Lee Yang/Wang Chi-lin (Taiwan/3) vs Goh Sze Fei (Malaysia/14): 21-18, 17-21, 21-18
MD - He Ji Ting/Tan Qiang (China/16) vs Aaron Chia/Soh Wooi Yik (Malaysia/4): 17-21, 21-14, 21-16
MD - Vladimir Ivanov/Ivan Sozonov (ROC/11) vs Kim Astrup/Anders Skaarup Rasmussen (Denmark/7): 22-20, 14-21, 11-21