Akita Masters 2019, MS 08/15 04:30 4 Bai, Y. P. v Yamaguchi, Yosei L 2-0
Akita Masters 2019, MS 08/14 01:30 5 Sankeerth, Bagalur Rajanna v Yamaguchi, Yosei W 0-2
Akita Masters 2019, MS 08/13 00:40 6 Yamaguchi, Yosei v Chiu, Vinson - Walkover
Indonesia Masters XD 12/17 00:09 - Kenta Nishimoto v Yamaguchi, Yosei L 2-1
Indonesia Masters XD 12/15 16:55 - Jui Ting Hsu v Yamaguchi, Yosei W 0-2