Berikut jadwal perempat final sektor ganda putra Swiss Open 2021
Aaron Chia/Soh Wooi Yik (Malaysia/1) vs Leo Rolly Carnando/Daniel Marthin (Indonesia)
Mark Lamsfuss/Marvin Seidel (Jerman) vs Nipitphon Phuangphuapet/Tanupat Viriyangkura (Thailand)
Kim Astrup/Anders Skaarup Rasmussen (Denmark/6) vs Low Hang Yee/Ng Eng Cheong (Malaysia)
Ong Yew Sin/Teo Ee Yi (Malaysia/5) vs Satwiksairaj Rankireddy/Chirag Shetty (India/2)