Keiichiro Matsui

Keiichiro Matsui (松居 圭一郎, Matsui Kei'ichirō; born 5 June 1994) is a Japanese badminton player who affiliated with the Hitachi team.^[1] Born in Ishikawa, he graduated from the Tomioka senior high school, and later educated at the Nippon Sport Science University.^[2] He was part of the national junior team that won the gold medal at the 2012 Asian Junior Championships,^[3][4] and the silver medal at the 2012 World Junior Championships.^[5][6]

Kei'ichirō Matsui
Personal information
Country	Japan
Born	(1994-06-05) 5 June 1994 (age 31) Ishikawa, Japan
Height	1.69 m (5 ft 7 in)
Weight	64 kg (141 lb)
Handedness	Right
Men's & mixed doubles
Highest ranking	26 (MD with Yoshinori Takeuchi, 19 September 2023) 212 (XD with Akane Araki, 5 July 2018)
Current ranking	79 (MD with Katsuki Tamate, 19 August 2025)
Medal record Men's badminton Representing  Japan Thomas Cup 2022 Bangkok Men's team World Junior Championships 2012 Chiba Mixed team Asian Junior Championships 2012 Gimcheon Mixed team
BWF profile

Achievements

BWF World Tour (1 runner-up)

The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,^[7] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tour is divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300 (part of the HSBC World Tour), and the BWF Tour Super 100.^[8]

Men's doubles

Year	Tournament	Level	Partner	Opponent	Score	Result	Ref
2019	Russian Open	Super 100	Yoshinori Takeuchi	Mathias Boe Mads Conrad-Petersen	18–21, 13–21	Runner-up	[9]

BWF Grand Prix (1 runner-up)

The BWF Grand Prix had two levels, the Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) and played between 2007 and 2017.

Mixed doubles

Year	Tournament	Partner	Opponent	Score	Result	Ref
2017	Russian Open	Akane Araki	Chan Peng Soon Cheah Yee See	8–11, 13–11, 3–11	Runner-up	[10][11]

  BWF Grand Prix tournament

BWF International Challenge/Series (3 titles, 1 runner-up)

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result	Ref
2017	Spanish International	Yoshinori Takeuchi	Jacco Arends Ruben Jille	17–21, 19–21	Runner-up	[12]
2019	Maldives International	Yoshinori Takeuchi	Arun George Sanyam Shukla	21–9, 22–20	Winner	[13]
2019	Dubai International	Yoshinori Takeuchi	Shia Chun Kang Tan Boon Heong	21–14, 21–14	Winner	[14]
2025	Malaysia International	Katsuki Tamate	Muhammad Faiq Lok Hong Quan	15–7, 15–13	Winner	[15]

  BWF International Challenge tournament