Berikut hasil semifinal Spain Masters 2021:
Yulfira Barkah/Febby Valencia Dwijayanti Gani vs Julie Macpherson/Clara Torrance 21-10, 21-14
Sabar Karyaman Gutama/Moh. Reza Pahlevi Isfahani vs Adam Hall/Frederik Soogard 21-19, 13-21, 21-14
Pramudya Kusumawardana/Yeremia Erich Yoche Yacob Rambitan vs Christo Popov/Toma Junior Popov 18-21, 21-19, 21-14
Chico Aura Dwi Wardoyo vs Shesar Hiren Rhustavito 21-16, 21-19
Rinov Rivaldy/Pitha Haningtyas Mentari vs Adam Hall/Julie Macpherson 21-16, 21-15
Putri Kusuma Wardani vs Leonice Huet 21-8, 21-14