Indonesia Masters XD 04/24 09:00 6 Nilsson, Jacob v Kai Schaefer L 2-0
Giraldilla Int. XD 04/06 07:30 1 Kai Schaefer v Heino, Eetu L 0-2
Giraldilla Int. XD 03/28 13:50 5 Kai Schaefer v Gurusaidatt, Rajah Manuri Venkata L 0-2
Giraldilla Int. XD 03/10 10:00 1 Svendsen, Victor v Kai Schaefer L 2-0
Giraldilla Int. XD 03/09 18:15 1 Kai Schaefer v Tsai, Andy W 2-1
Giraldilla Int. XD 02/21 09:20 5 Kantaphon Wangcharoen v Kai Schaefer L 2-0
Indonesia Masters XD 02/17 14:00 1 Holst, Emil v Kai Schaefer W 0-2
Indonesia Masters XD 02/16 14:45 1 Kai Schaefer v Ludik, Milan W 2-1
Giraldilla Int. XD 12/15 14:20 1 Kim Bruun v Kai Schaefer L 2-0
Giraldilla Int. XD 12/15 09:30 1 Kai Schaefer v Merrilees, Kieran W 2-1
Giraldilla Int. XD 12/07 10:30 1 Kai Schaefer v Adrian Dziolko L 0-2
Giraldilla Int. XD 12/06 14:00 1 Kai Schaefer v Magee, Joshua W 2-1
Indonesia Masters XD 11/01 19:15 5 Kai Schaefer v Phetpradab, Khosit L 0-2
Indonesia Masters XD 10/31 18:20 6 Kai Schaefer v Zavadsky, Dmytro W 2-0
Open de Suisse - Doubles Femmes - Qualif. 10/24 14:40 1 Kai Schaefer v Rouxel, Thomas L 0-2
Open de Suisse - Doubles Femmes - Qualif. 10/24 09:20 1 Cajot, Pierrick v Kai Schaefer W 0-2
Indonesia Masters XD 10/11 19:00 5 Kai Schaefer v Pablo Abian L 0-2
Dutch Open 10/11 08:00 6 Rouxel, Thomas v Kai Schaefer W 0-2
Indonesia Masters XD 04/25 13:15 6 Toby Penty v Kai Schaefer L 2-0
Giraldilla Int. XD 04/07 07:40 1 Rouxel, Thomas v Kai Schaefer L 2-0
Giraldilla Int. XD 03/31 09:05 1 Kai Schaefer v Malkov, Vladimir L 0-2
Open d'Angleterre 02/28 19:00 6 Kai Schaefer v Kalle Koljonen L 1-2
Giraldilla Int. XD 01/14 08:43 - Toby Penty v Kai Schaefer L 2-1
Giraldilla Int. XD 01/13 16:40 - Burestedt, Felix v Kai Schaefer W 0-2
Indonesia Masters XD 12/15 16:21 - Hurskainen, Henri v Kai Schaefer L 2-0
Indonesia Masters XD 12/03 10:43 - Kai Schaefer v Pablo Abian L 1-2
Indonesia Masters XD 11/23 18:50 6 Kai Schaefer v Kuo, Ching-Hung L 0-2
Open d'Angleterre 11/03 17:50 4 Kai Schaefer v Shi, Y. Q. L 0-2
Open d'Angleterre 11/02 19:30 5 Poulakowski, Maciej v Kai Schaefer W 0-2
Open d'Angleterre 11/01 17:40 6 Kai Schaefer v Holst, Emil W 2-0

Wikipedia - Kai Schäfer

Kai Hendrik Schäfer (born 13 June 1993) is a German badminton player. He competed at the 2020 Tokyo Olympics.