Keita Masuda

Keita Masuda (舛田圭太; born 27 February 1979 in Kanazawa, Ishikawa, Japan^[1]) is a male badminton player from Japan.

Masuda competed in badminton at the 2004 Summer Olympics in men's doubles with partner Tadashi Ohtsuka. They had a bye in the first round, then were defeated in the round of 16 by Fu Haifeng and Cai Yun of China.

Matsuda played at the 2007 BWF World Championships in men's doubles with Tadashi Ohtsuka, and were defeated in the third round by the eventual champions Markis Kido and Hendra Setiawan, of Indonesia, 22–20, 21–19. He also played in mixed doubles with Miyuki Maeda and they lost in the second round against He Hanbin and Yu Yang, 21–17, 21–18.

The BWF Grand Prix had two levels, the BWF Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) which was held from 2007 to 2017. The World Badminton Grand Prix has been sanctioned by International Badminton Federation (IBF) from 1983 to 2006.

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result
2005	Dutch Open	Tadashi Ōtsuka	Choong Tan Fook Lee Wan Wah	7–15, 4–15	Runner-up
2007	U.S. Open	Tadashi Ōtsuka	Howard Bach Khan Malaythong	21–18, 21–11	Winner

Mixed doubles

Year	Tournament	Partner	Opponent	Score	Result
2007	U.S. Open	Miyuki Maeda	Howard Bach Eva Lee	19–21, 21–11, 21–19	Winner

  BWF Grand Prix tournament

  IBF World Grand Prix tournament

Men's singles

Year	Tournament	Opponent	Score	Result
2003	Mauritius International	Hidetaka Yamada	15–4, 15–11	Winner

Men's doubles

Year	Tournament	Partner	Opponent	Score	Result
1999	Mexico International	Tadashi Ōtsuka	Ma Che Kong Yau Tsz Yuk	7–15, 15–13, 10–15	Runner-up
2000	Cuba International	Tadashi Ōtsuka	José Antonio Crespo Sergio Llopis	15–9, 15–2	Winner
2000	French International	Tadashi Ōtsuka	Takuya Katayama Yuzo Kubota	15–6, 15–11	Winner
2003	Waikato International	Tadashi Ōtsuka	Hendri Saputra Denny Setiawan	7–15, 15–12, 3–15	Runner-up
2003	Guatemala International	Tadashi Ōtsuka	Howard Bach Kevin Han	15–6, 15–12	Winner
2004	Iran Fajr International	Keita Masuda	Liu Kwok Wa Albertus Susanto Njoto	4–15, 11–15	Runner-up
2004	Mauritius International	Tadashi Ōtsuka	Liu Kwok Wa Albertus Susanto Njoto	15–11, 15–8	Winner

  BWF International Series tournament

• Keita Masuda at BWFBadminton.com
• Keita Masuda at BWF.TournamentSoftware.com (archived, alternate link)
• Keita Masuda at Olympedia
• Keita Masuda at Olympics.com
• Keita Masuda – Sydney 2000 at Team Japan (in Japanese) (in English)
• Keita Masuda – Athens 2004 at Team Japan (in Japanese) (in English)
• Keita Masuda – Beijing 2008 at Team Japan (in Japanese) (in English)
• Keita Masuda – London 2012 at Team Japan (in Japanese) (in English)
• Keita Masuda – Rio 2016 at Team Japan (in Japanese) (in English)