Kai Schaefer vs David King (MS, Qualifier) - Orleans Intl. 2016
Love Badminton | Highlights Lee Chong Wei vs Kai Schaefer - 2016 Thomas Cup - Group C
Rasmus Gemke vs Kai Schaefer (MS, QF) - Denmark Challenge 2019
Brian Yang (CAN) vs Kai Schaefer (GEM) | R64 | BWF World Championships 2023
Eetu Heino vs Kai Schaefer (MS, R32) - Scottish Open 2019
Germany (Kai Schaefer) vs Russia (Vladimir Malkov) - SF - European Mixed Team C’ships 2019
2022 YONEX Canadian International Challenge | Takuma Obayashi (JPN) vs. Kai Schaefer (GER) | SF
Kai Schaefer vs Luka Wraber (MS, R32) - Denmark Challenge 2019
Lucas Claerbout vs Kai Schaefer (MS, SF) - Denmark Challenge 2019
Kai Schaefer vs Ygor Coelho (MS, QF) - YONEX Belgian Intl. 2019
Match points - England (Rajiv Ouseph) vs Germany (Kai Schaefer) - EMTC 2019
Jacob Nilsson vs Kai Schaefer (MS, R64) - European C'ships 2018
Der Marathonmann Kai Schäfer im Finale!
Kai Schaefer - player and politican
Luka Wraber vs Kai Schäfer - Final Four 2019
Kai Schaefer vs Felix Burestedt (MS, R32) - YONEX Belgian Intl. 2019
Interview mit Nationalspieler Kai Schäfer (Union Lüdinghausen) vom 30.11.2017 in Recklinghausen
Lee Zii Jia vs Kai Schaefer | Thailand Open 2022 | Highlights
Toby Penty vs Kai Schaefer (MS, QF) - Estonian International 2017
175 CADET 152 Asa Barnes Alaska vs Kai Schaefer California 8419947104
