Berikut order of play semifinal Indonesia Open 2021.
WS: Pornpawee Chochuwong (Thailand/5) vs An Se-young (Korea Selatan/4)
WD: Dechapol Puavaranukroh/Sapsiree Taerattanachai (Thailand/1) vs Ko Sung-hyung/Eom Hye-won (Korea Selatan)
WS: Pusarla V. Shindu (India/3) vs Ratchanok Intanon (Thailand/2)
XD: Yuta Watanabe/Arisa Higashino (Jepang/3) vs Mathias Christiansen/Alexandra Boje (Denmark)
WD: Jongkolphan Kititharakul/Rawinda Prajongjai (Thailand/3) vs Greysia Polii/Apriyani Rahayu (Indonesia/2)
WD: Baek Ha-na/Lee Yu-rim (Korea Selatan) vs Nami Matsuyama/Chiharu Shida (Jepang/4)
MD: Marcus Fernaldi Gideon/Kevin Sanjaya Sukamuljo (Indonesia/1) vs Satwiksairaj Rankireddy/Chirag Shetty (India/6)
MS: Jonatan Christie (Indonesia/6) vs Viktor Axelsen (Denmark/2)
MD: Akira Koga/Taichi Saito (Jepang) vs Takuro Hoki/Yugo Kobayashi (Jepang)
MS: Loh Kean Yew (Singapura) vs Rasmus Gemke (Denmark)