Kazumasa Sakai

is a Japanese badminton player who is single specialist. He represented Japan and won a silver medal at the 2017 Indonesia Open.

Achievements

East Asian Games Men's singles Year Venue Opponent Score Result Ref 2013 Binhai New Area Dagang Gymnasium, Tianjin, China Wang Zhengming 11–21, 17–21 Bronze Bronze

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

Men's singles Year Tournament Level Opponent Score Result 2018 Indonesia Masters Super 500 Anthony Sinisuka Ginting 13–21, 12–21 Runner-up

BWF Superseries The BWF Superseries, which was launched on 14 December 2006 and implemented in 2007, was a series of elite badminton tournaments, sanctioned by the Badminton World Federation (BWF). BWF Superseries levels were Superseries and Superseries Premier. A season of Superseries consisted of twelve tournaments around the world that had been introduced since 2011. Successful players were invited to the Superseries Finals, which were held at the end of each year.

Men's singles Year Tournament Opponent Score Result 2017 Indonesia Open Srikanth Kidambi 11–21, 19–21 Runner-up BWF Superseries Premier tournament

BWF Grand Prix 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.

Men's singles Year Tournament Opponent Score Result 2012 Russian Open Vladimir Malkov 21–17, 21–17 Winner BWF Grand Prix tournament

BWF International Challenge/Series Men's singles Year Tournament Opponent Score Result Ref 2012 Osaka International Kazushi Yamada Walkover Winner 2012 Scottish International Anand Pawar 21–10, 11–21, 17–21 Runner-up 2015 China International Qiao Bin 14–21, 12–21 Runner-up 2015 Portugal International Marius Myhre 21–13, 21–13 Winner 2015 Osaka International Jeon Hyeok-jin 21–15, 17–21, 14–21 Runner-up BWF International Challenge tournament BWF International Series tournament