Berikut pemain unggulan yang kalah di babak perempat final Indonesia Masters 2021.
XD - Hafiz Faizal/Gloria Emanuelle Widjaja (Indonesia/6) vs Yuta Watanabe/Arisa Higashino (Jepang/3) : 21-16, 17-21, 9-21
XD - Marcus Ellis/Lauren Smith (Inggris/4) vs Ko Sung-hyun/Eom Hye-wong (Korea Selatan) : 17-21, 15-21
MD - Kim Astrup/Anders Skaarup Rasmussen (Denmark/7) vs Takuro Hoki/Yugo Kobayashi (Jepang) : 21-19, 14-21, 19-21
WD - Greysia Polii/Apriyani Rahayu (Indonesia/2) vs Puttita Supajirakul/Sapsiree Taerattanachai (Thailand) : 21-18, 13-21, 19-21
WD - Pearly Tan/Muralitharan Thinaah (Malaysia/8) vs Nami Matsuyama/Chiharu Shida (Jepang/4) : 14-21, 15-21
WD - Jongkolphan Kititharakul/Rawinda Prajongjai (Thailand/3) vs Jeong Na-eun/Kim Hye-jeong (Korea Selatan) : 11-21, 16-21
WS - Sayaka Takahashi (Jepang/8) vs An Seyoung (Korea Selatan/4) : 15-21, 14-21