Table tennis - Koki Niwa

Japan - 10 October 1994

Koki Niwa (born 10 October 1994 in Tomakomai) is a table tennis player who competes internationally for Japan. His last victories are the Men's Austrian Open Doubles 2017 and the Men's Russian Open 2014. He represents the club : Aomori Yamada High School Table Tennis Club.

Results
Identity
Prize list

Resultats

Click on a year to expand/reduce

Results - Singles

2021

Victory : 0
Final : 0
Summary : 3 Victories / 4 Defeats

Men's Olympic Games from 24 July to 31 July 2021
Round of 32	defeat	Yang Wang	4-0 (11-6, 11-8, 11-3, 12-10)
Round of 16	defeated by	Dimitrij Ovtcharov	4-1 (11-4, 7-11, 11-0, 11-7, 11-9)
Men's Olympic Games - Team from 24 July to 31 July 2021
Quarter-Finals	defeat	Mattias Falck	3-0 (10,11-5,11-6)
Semi-Finals	defeated by	Dimitrij Ovtcharov	3-0 (11-9, 11-7, 11-8)
Third Place Match	defeated by	Young-sik Jung	3-0 (11-3,11-8,11-7)
Men's World Championships from 23 November to 29 November 2021
First Round	defeat	Nandor Ecseki	4-0 (11-7, 11-9, 11-7, 11-4)
Second Round	defeated by	Daniel Habesohn	4-2 (11-8, 9-11, 5-11, 17-15, 11-9, 11-4)

2020

Victory : 0
Final : 0
Summary : 2 Victories / 4 Defeats

Men's German Open from 28 January to 2 February 2020
Round of 32	defeat	Kanak Jha	4-2 (6-11, 11-9, 11-5, 11-5, 8-11, 11-8)
Round of 16	defeated by	Gaoyuan Lin	4-3 (11-7, 9-11, 7-11, 11-5, 10-12, 18-16, 11-8)
Men's Hungarian Open from 18 February to 23 February 2020
Round of 32	defeated by	Benedikt Duda	4-0 (11-9, 11-6, 18-16, 11-8)
Men's Qatar Open from 3 March to 8 March 2020
Round of 32	defeat	Emmanuel Lebesson	4-1 (11-8, 14-12, 11-4, 10-12, 11-6)
Round of 16	defeated by	Xin Xu	4-0 (15-13, 11-5, 11-3, 11-8)
Men's World Cup from 13 November to 15 November 2020
Round of 16	defeated by	Woojin Jang	4-3 (11-13, 11-4, 12-14, 8-11, 11-9, 11-7, 12-10)

2019

Victory : 0
Final : 0
Summary : 12 Victories / 14 Defeats

Men's Qatar Open from 28 March to 31 March 2019
Round of 32	defeat	Maharu Yoshimura	4-2 (11-7, 8-11, 3-11, 11-9, 11-1, 14-12)
Round of 16	defeated by	Patrick Franziska	4-3 (10-12, 13-11, 12-10, 7-11, 12-14, 11-4, 11-6)
Men's World Championships from 21 April to 28 April 2019
First Round	defeat	Marcelo Aguirre	4-1 (10-12, 11-9, 12-10, 11-1, 11-9)
Second Round	defeat	Paul Drinkhall	4-0 (11-4, 15-13, 11-5, 11-9)
Round of 32	defeat	Jakub Dyjas	4-1 (11-7, 11-8, 11-9, 1-11, 14-12)
Round of 16	defeat	Tomislav Pucar	4-2 (12-10, 11-5, 5-11, 11-8, 8-11, 12-10)
Quarter-Finals	defeated by	Jingkun Liang	4-3 (12-10, 10-12, 11-8, 11-4, 9-11, 7-11, 11-5)
Men's China Open from 28 May to 2 June 2019
Round of 32	defeat	Kazuhiro Yoshimura	4-0 (11-3, 11-8, 11-6, 11-4)
Round of 16	defeated by	Long Ma	4-0 (11-4, 11-5, 11-5, 11-2)
Men's Hong Kong Open from 6 June to 9 June 2019
Round of 32	defeat	Sathiyan Gnanasekaran	4-1 (11-5, 10-12, 13-11, 12-10, 11-5)
Round of 16	defeated by	Jun Mizutani	4-2 (4-11, 9-11, 12-10, 11-6, 11-5, 11-2)
Men's Japan Open from 14 June to 16 June 2019
Round of 32	defeated by	Kazuhiro Yoshimura	4-2 (11-4, 1-11, 11-9, 13-11, 5-11, 15-13)
Men's Korea Open from 4 July to 7 July 2019
Round of 32	defeated by	Seungmin Cho	4-1 (8-11, 11-9, 11-8, 11-9, 11-6)
Men's Australian Open from 11 July to 14 July 2019
Round of 32	defeated by	Yun-Ju Lin	4-3 (9-11, 11-5, 12-10, 6-11, 11-8, 9-11, 11-6)
Men's Bulgaria Open from 15 August to 18 August 2019
Round of 32	defeated by	Marcos Freitas	4-0 (13-11, 11-6, 11-1, 11-9)
Men's Czech Open from 22 August to 25 August 2019
Round of 32	defeated by	Marcos Freitas	4-1 (4-11, 11-9, 11-7, 11-4, 15-13)
Men's Paraguay Open from 10 September to 11 September 2019
Round of 32	defeated by	Kai Zhang	4-2 (11-4, 11-8, 11-6, 10-12, 2-11, 11-8)
Men's Swedish Open from 3 October to 6 October 2019
Round of 32	defeat	Takuya Jin	4-2 (9-11, 11-6, 9-11, 11-4, 11-1, 11-7)
Round of 16	defeated by	Simon Gauzy	4-2 (11-9, 11-8, 6-11, 11-6, 8-11, 11-8)
Men's German Open from 10 October to 13 October 2019
Round of 32	defeat	Kenta Matsudaira	4-1 (4-11, 11-8, 11-4, 11-3, 11-5)
Round of 16	defeated by	Young-sik Jung	4-3 (11-6, 7-11, 11-8, 9-11, 9-11, 11-9, 11-8)
Men's Austrian Open from 14 November to 17 November 2019
Round of 32	defeat	Benedikt Duda	4-2 (11-8, 11-9, 11-5, 4-11, 5-11, 11-6)
Round of 16	defeat	Mattias Falck	4-2 (8-11, 11-5, 11-7, 16-14, 9-11, 11-9)
Quarter-Finals	defeated by	Hugo Calderano	4-2 (7-11, 11-9, 11-1, 14-12, 9-11, 11-8)
Men's World Cup from 29 November to 1 December 2019
Round of 16	defeat	Sang-su Lee	4-2 (11-6, 11-8, 14-16, 11-7, 8-11, 13-11)
Quarter-Finals	defeated by	Tomokazu Harimoto	4-3 (11-6, 11-7, 10-12, 10-12, 12-14, 11-3, 11-8)

2018

Victory : 0
Final : 1 (Men's Team World Cup)
Summary : 9 Victories / 15 Defeats

Men's Team World Cup from 22 February to 25 February 2018
Quarter-Finals	defeated by	Chun Ting Wong	3-1 (9-11, 15-13-11, 13-11-3, 13-11-8)
Semi-Finals	defeated by	Young-sik Jung	3-1 (13-11-7, 7-11, 13-11-9, 13-11-9)
Final	defeated by	Long Ma	3-1 (13-11-8, 3-11, 13-11-5, 13-11-3)
Men's Qatar Open from 8 March to 11 March 2018
Round of 32	defeated by	Sharath Kamal Achanta	4-1 (9-11, 11-9, 11-8, 14-12, 11-9)
Men's German Open from 23 March to 25 March 2018
Round of 32	defeat	Jin Ueda	4-2 (11-8, 11-6, 5-11, 11-5, 8-11, 11-6)
Round of 16	defeated by	Mattias Karlsson	4-1 (11-8, 8-11, 11-3, 11-8, 11-9)
Men's China Open from 31 May to 3 June 2018
Round of 32	defeat	Bojan Tokic	4-2 (11-7, 11-6, 11-9, 4-11, 6-11, 11-9)
Round of 16	defeat	Liam Pitchford	4-3 (11-8, 8-11, 11-6, 11-9, 11-13, 10-12, 11-9)
Quarter-Finals	defeated by	Zhendong Fan	4-1 (11-9, 11-6, 12-10, 9-11, 11-3)
Men's Japan Open from 7 June to 10 June 2018
Round of 32	defeated by	Kazuhiro Yoshimura	4-2 (9-11, 11-8, 11-2, 11-8, 9-11, 11-7)
Men's Korea Open from 19 July to 22 July 2018
Round of 32	defeated by	Sangeun Jeong	4-2 (10-12, 11-5, 10-12, 11-8, 12-10, 11-7)
Men's Australian Open from 26 July to 29 July 2018
Round of 32	defeated by	Yu Zhou	4-2 (7,9,-8,-5,5,9)
Men's Bulgaria Open from 16 August to 19 August 2018
Round of 32	defeat	Dang Qiu	4-1 (8-11, 11-5, 11-4, 11-8, 11-7)
Round of 16	defeat	Mattias Falck	4-2 (6-11, 11-3, 12-10, 11-9, 7-11, 11-9)
Quarter-Finals	defeated by	Xin Xu	4-0 (11-1, 11-6, 11-9, 11-7)
Men's Czech Open from 23 August to 26 August 2018
Round of 32	defeated by	Mizuki Oikawa	4-1 (11-9, 11-7, 5-11, 12-10, 12-10)
Men's World Cup from 19 October to 21 October 2018
Round of 16	defeat	Jonathan Groth	4-1 (11-8, 11-5, 4-11, 12-10, 11-5)
Quarter-Finals	defeated by	Gaoyuan Lin	4-1 (12-10, 5-11, 14-12, 11-9, 11-5)
Men's Swedish Open from 1 November to 4 November 2018
Round of 32	defeat	Darko Jorgic	4-3 (10-12, 11-9, 7-11, 11-7, 6-11, 12-10, 11-9)
Round of 16	defeated by	Kristian Karlsson	4-2 (11-6, 5-11, 9-11, 11-9, 16-14, 11-2)
Men's Austrian Open from 8 November to 11 November 2018
Round of 32	defeat	Qihao Zhou	4-2 (11-9, 6-11, 12-10, 11-5, 7-11, 11-9)
Round of 16	defeat	Kazuhiro Yoshimura	4-0 (11-9, 11-7, 11-6, 12-10)
Quarter-Finals	defeated by	Zhendong Fan	4-1 (11-8, 11-6, 8-11, 11-5, 11-9)
Men's Pro Tour Grand Finals from 13 December to 16 December 2018
Round of 16	defeated by	Zhendong Fan	4-0 (11-6, 11-8, 11-5, 12-10)

2017

Victory : 0
Final : 0
Summary : 23 Victories / 13 Defeats

Men's Indian Open from 14 February to 19 February 2017
Round of 32	defeat	Amalraj Anthony Arputharaj	4-0 (11-4, 11-5, 15-13, 11-4)
Round of 16	defeat	Harmeet Desai	4-1 (14-16, 11-6, 11-7, 11-4, 11-9)
Quarter-Finals	defeat	Tianyi Jiang	4-1 (11-9, 10-12, 11-1, 11-8, 11-8)
Semi-Finals	defeated by	Dimitrij Ovtcharov	4-3 (8-11, 11-2, 9-11, 12-10, 14-16, 11-2, 11-8)
Men's Qatar Open from 21 February to 26 February 2017
Round of 32	defeat	Ricardo Walther	4-1 (11-6, 13-11, 11-9, 8-11, 11-8)
Round of 16	defeat	Jike Zhang	4-0 (11-1, 11-0, 11-0, 11-0)
Quarter-Finals	defeated by	Chih-Yuan Chuang	4-2 (9-11, 16-14, 6-11, 12-10, 11-8, 11-4)
Men's Asian Championships from 9 April to 16 April 2017
Second Round	defeat	Il Choe	3-2 (11-8, 9-11, 11-7, 5-11, 12-10)
Round of 32	defeat	Soumyajit Ghosh	3-0 (11-3, 11-4, 11-5)
Round of 16	defeat	Ning Gao	3-1 (5-11, 11-9, 11-2, 12-10)
Quarter-Finals	defeat	Xin Xu	3-1 (12-10, 5-11, 11-8, 11-7)
Semi-Finals	defeated by	Sangeun Jeong	3-2 (6-11, 9-11, 11-5, 11-7, 13-11)
Men's Korea Open from 18 April to 23 April 2017
Round of 32	defeat	Seungmin Cho	4-1 (11-5, 11-6, 11-8, 5-11, 12-10)
Round of 16	defeated by	Patrick Franziska	4-1 (12-10, 12-10, 11-8, 2-11, 11-3)
Men's World Championships from 29 May to 5 June 2017
First Round	defeat	Andreas Levenko	4-0 (11-3, 11-8, 11-6, 11-8)
Second Round	defeat	Ning Gao	4-3 (9-11, 12-10, 11-7, 11-8, 5-11, 12-14, 11-4)
Round of 32	defeat	Jonathan Groth	4-2 (8-11, 9-11, 11-6, 11-7, 11-8, 11-1)
Round of 16	defeat	Dimitrij Ovtcharov	4-3 (11-13, 11-9, 11-13, 12-10, 11-5, 9-11, 11-9)
Quarter-Finals	defeated by	Zhendong Fan	4-1 (11-9, 6-11, 11-6, 11-8, 11-4)
Men's Japan Open from 14 June to 18 June 2017
Round of 32	defeat	Ruwen Filus	4-3 (11-8, 11-9, 11-5, 10-12, 8-11, 9-11, 11-5)
Round of 16	defeat	Jin Ueda	4-2 (11-7, 5-11, 11-8, 5-11, 11-7, 11-7)
Quarter-Finals	defeated by	Long Ma	4-1 (11-8, 12-10, 9-11, 11-5, 11-3)
Men's China Open from 20 June to 25 June 2017
Round of 32	defeat	Kwan Kit Ho	4-1 (11-7, 9-11, 16-14, 11-9, 11-9)
Round of 16	defeat	Yuto Muramatsu	4-3 (11-9, 7-11, 4-11, 11-7, 12-14, 11-9, 11-6)
Quarter-Finals	defeated by	Tomokazu Harimoto	4-0 (11-9, 11-6, 11-5, 11-6)
Men's Australian Open from 4 July to 7 July 2017
Round of 32	defeated by	Tristan Flore	4-2 (11-4, 11-7, 5-11, 11-3, 8-11, 11-7)
Men's Austrian Open from 21 September to 24 September 2017
Round of 32	defeat	João Monteiro	4-1 (11-8, 5-11, 11-7, 11-7, 11-6)
Round of 16	defeat	Ruwen Filus	4-3 (10-12, 11-7, 11-8, 11-9, 6-11, 8-11, 11-7)
Quarter-Finals	defeated by	Gaoyuan Lin	4-1 (11-5, 11-5, 13-11, 10-12, 11-4)
Men's World Cup from 20 October to 22 October 2017
Round of 16	defeat	Sang-su Lee	4-2 (11-5, 12-10, 8-11, 2-11, 11-6, 11-9)
Quarter-Finals	defeated by	Long Ma	4-1 (13-11, 11-9, 11-5, 9-11, 11-8)
Men's German Open from 7 November to 12 November 2017
Round of 32	defeated by	Sangeun Jeong	4-2 (5-11, 11-9, 11-5, 10-12, 11-6, 11-7)
Men's Swedish Open from 13 November to 19 November 2017
Round of 32	defeat	Darko Jorgic	4-2 (11-9, 11-4, 11-7, 10-12, 11-13, 11-4)
Round of 16	defeat	Yang Wang	4-1 (11-4, 6-11, 11-4, 11-8, 11-7)
Quarter-Finals	defeated by	Bo Fang	4-3 (11-7, 11-6, 7-11, 8-11, 8-11, 11-8, 11-8)
Men's Pro Tour Grand Finals from 14 December to 17 December 2017
Round of 16	defeated by	Dimitrij Ovtcharov	4-3 (10-12, 11-6, 12-14, 11-6, 9-11, 11-9, 11-5)

2016

Victory : 0
Final : 1 (Men's Olympic Games - Team)
Summary : 3 Victories / 12 Defeats

Men's German Open from 27 January to 31 January 2016
Round of 16	defeated by	Long Ma	4-0 (11-7, 11-3, 11-1, 11-7)
World Men's Team Championships from 28 February to 6 March 2016
Quarter-Finals	defeated by	Peng Tang	3-0 (11-5, 11-6, 11-2)
Men's Kuwait Open from 16 March to 20 March 2016
Round of 16	defeated by	Jun Mizutani	4-1 (8-11, 11-9, 11-7, 11-6, 11-9)
East Asian Olympic Qualification - Men from 13 April to 17 April 2016
Round of 16	defeated by	Chih-Yuan Chuang	4-1 (13-11, 11-7, 11-2, 6-11, 11-4)
Men's Olympic Games from 6 August to 19 August 2016
Second Round	defeat	Segun Toriola	4-2 (9-11, 11-5, 11-7, 4-11, 11-6, 11-1)
Round of 32	defeat	Stefan Fegerl	4-1 (11-7, 11-8, 11-9, 4-11, 11-5)
Round of 16	defeat	Chun Ting Wong	4-3 (6-11, 11-6, 8-11, 5-11, 12-10, 11-4, 11-8)
Quarter-Finals	defeated by	Jike Zhang	4-1 (5-11, 11-4, 11-7, 11-7, 11-4)
Men's Olympic Games - Team from 6 August to 17 August 2016
Round of 16	defeated by	Jakub Dyjas	3-1 (11-8,7-11,13-11,11-8)
Quarter-Finals	defeated by	Peng Tang	3-2 (8-11,10-12,11-9,11-7,11-8)
Final	defeated by	Long Ma	3-0 (11-6,11-9,11-6)
Men's China Open from 14 September to 18 September 2016
Round of 16	defeated by	Jike Zhang	4-1 (12-10, 11-5, 8-11, 11-5, 11-2)
Men's Austrian Open from 9 November to 13 November 2016
Round of 16	defeated by	Kenta Matsudaira	4-1 (6-11, 11-5, 11-5, 11-5, 11-8)
Men's Swedish Open from 16 November to 20 November 2016
Round of 16	defeated by	Mattias Karlsson	4-1 (6-11, 11-8, 11-8, 11-7, 11-2)
Men's Pro Tour Grand Finals from 8 December to 11 December 2016
Round of 16	defeated by	Zhendong Fan	4-1 (11-7, 11-7, 11-7, 9-11, 11-4)

2015

Victory : 0
Final : 0
Summary : 7 Victories / 8 Defeats

Men's Spanish Open from 25 March to 29 March 2015
Round of 16	defeat	Ping Li	4-2 (11-5, 11-13, 11-6, 10-12, 11-8, 11-3)
Quarter-Finals	defeated by	Chun Ting Wong	4-3 (11-6, 10-12, 11-9, 11-6, 7-11, 7-11, 11-9 )
Men's World Championships from 26 April to 3 May 2015
First Round	defeat	Janos Jakab	4-0 (11-4,11-2,11-8,11-7)
Round of 64	defeat	Zengyi Wang	4-2 (911, 11-2, 11-6, 9-11, 11-3, 11-2)
Round of 32	defeat	Tianyi Jiang	4-2 (8-11, 2-11, 11-7, 11-3, 11-6, 11-3)
Round of 16	defeated by	Zhendong Fan	4-1 (11-5, 12-14, 11-2, 11-2, 11-9)
Men's Japan Open from 24 June to 28 June 2015
Round of 16	defeated by	Yuto Muramatsu	4-3 (9-11, 11-7, 10-12, 9-11, 11-5, 11-4, 11-7 )
Men's Korea Open from 1 July to 5 July 2015
Round of 16	defeat	Ping Li	4-2 (13-11, 11-9, 6-11, 10-12, 11-5, 11-2)
Quarter-Finals	defeat	Masaki Yoshida	4-1 (11-4, 9-11, 11-9, 12-10, 13-11)
Semi-Finals	defeated by	Saehyuk Joo	4-0 (11-9, 11-5, 11-9, 11-9)
Men's China Open from 5 August to 9 August 2015
Round of 16	defeated by	Yuya Oshima	4-3 (11-8,12-10,7-11,4-11,11-4,5-11,12-10)
Men's Asian Championships from 26 September to 3 October 2015
Round of 32	defeated by	Hung-Chieh Chiang	4-3 (12-10, 7-11, 8-11, 9-11, 11-9, 11-7, 11-6)
Men's World Cup from 16 October to 18 October 2015
Round of 16	defeat	Robert Gardos	4-2 (11-7, 7-11, 11-6, 8-11, 11-4, 11-5)
Quarter-Finals	defeated by	Dimitrij Ovtcharov	4-1 (10-12, 11-6, 11-3, 11-8, 11-5)
Men's Pro Tour Grand Finals from 10 December to 13 December 2015
Round of 16	defeated by	Vladimir Samsonov	4-1 (11-9, 11-3, 6-11, 11-7, 11-8)

2014

Victory : 1 (Men's Russian Open)
Final : 0
Summary : 8 Victories / 4 Defeats

World Men's Team Championships from 28 April to 5 May 2014
Quarter-Finals	defeat	Marcos Freitas	3-0 (11-7,11-5,16-14)
Semi-Finals	defeated by	Timo Boll	3-1 (16-18,11-5,11-4,14-12)
Men's China Open from 4 June to 8 June 2014
Round of 16	defeated by	Chih-Yuan Chuang	4-0 (11-5,18-16,11-8,11-4)
Men's Czech Open from 27 August to 31 August 2014
Round of 16	defeat	Zhiwen He	4-3 (11-8, 9-11, 11-4, 11-7, 9-11, 9-11, 11-5)
Quarter-Finals	defeat	Masataka Morizono	4-3 (5-11, 11-13, 11-6, 5-11, 11-5, 11-7, 16-14 )
Semi-Finals	defeated by	Marcos Freitas	4-3 (9-11, 5-11, 8-11, 11-6, 11-7, 11-6)
Men's Russian Open from 5 November to 9 November 2014
Round of 16	defeat	Liam Pitchford	4-2 (11-8, 7-11, 11-9, 11-9, 811, 11-9)
Quarter-Finals	defeat	Tiago Apolonia	4-1 (11-8, 11-7, 8-11, 11-8, 11-7)
Semi-Finals	defeat	Jun Mizutani	4-0 (11-6, 11-4, 11-9, 11-8)
Final	defeat	Paul Drinkhall	4-1 (12-14, 11-8, 11-5, 11-7, 11-7)
Men's Pro Tour Grand Finals from 11 December to 15 December 2014
Round of 16	defeat	Eonrae Cho	4-2 (7-11, 14-12, 10-12, 11-7, 11-6, 11-7)
Quarter-Finals	defeated by	Marcos Freitas	4-2 (11-8, 11-8, 7-11, 11-13, 11-9, 11-9)

2013

Victory : 0
Final : 0
Summary : 6 Victories / 7 Defeats

Men's Korea Open from 3 April to 7 April 2013
Round of 16	defeated by	Xin Xu	4-1 (11-7,11-8,10-12,11-2,11-5)
Men's World Championships from 13 May to 20 May 2013
Round of 64	defeat	Mikhail Paykov	4-3 (8-11, 11-6, 11-7, 7-11, 9-11, 12-10, 11-9)
Round of 32	defeat	Zhiwen He	4-2 (11-2, 11-6, 11-9, 7-11, 7-11, 11-7)
Round of 16	defeated by	Long Ma	4-2 (11-5, 9-11, 11-7, 9-11, 11-4, 11-7)
Men's Japan Open from 19 June to 23 June 2013
Round of 16	defeat	Patrick Franziska	4-2 (11-5, 11-7, 11-8, 9-11, 9-11, 11-9)
Quarter-Finals	defeated by	Masato Shiono	4-1 (11-13, 11-7, 11-5, 11-6, 11-5)
Men's China Harmony Open from 14 August to 18 August 2013
Round of 16	defeat	An Yan	4-3 (7-11,11-9,11-9,11-6,4-11,5-11,13-11)
Quarter-Finals	defeat	Kenta Matsudaira	4-3 (11-8, 8-11, 15-17, 10-12, 11-5, 11-9, 11-6)
Semi-Finals	defeated by	Long Ma	4-0 (11-9, 11-5, 11-1, 11-8)
Men's Polish Open from 6 November to 10 November 2013
Round of 16	defeated by	Yu Zhou	4-1 (11-7, 9-11, 11-3, 11-6, 11-9)
Men's Russian Open from 20 November to 24 November 2013
Round of 16	defeat	Hang Yin	4-1 (11-8,11-4,11-8,9-11,11-3)
Quarter-Finals	defeated by	Peifeng Zheng	4-3 (12-10, 9-11, 16-14, 11-13, 11-3, 10-12, 11-5)
Men's Pro Tour Grand Finals from 9 January to 12 January 2014
Round of 16	defeated by	Hao Wang	4-1 (9-11,11-8,11-9,11-8,11-6)

2012

Victory : 0
Final : 0
Summary : 4 Victories / 9 Defeats

Men's Qatar Open from 7 February to 12 February 2012
Round of 16	defeated by	Tianyi Jiang	4-1 (14-12,7-11,11-8,11-6,11-5)
Men's Kuwait Open from 14 February to 18 February 2012
Round of 16	defeat	Hu Li	4-0 (11-9, 11-8, 11-7, 11-9)
Quarter-Finals	defeated by	Chih-Yuan Chuang	4-3 (11-8, 12-14, 11-8, 11-7, 6-11, 7-11, 11-6 )
World Men's Team Championships from 25 March to 1 April 2012
Quarter-Finals	defeat	Ning Gao	3-0 (13-11, 11-7, 13-11)
Semi-Finals	defeated by	Timo Boll	3-0 (11-5, 11-7, 11-9)
Men's Korea Open from 16 May to 20 May 2012
Round of 16	defeated by	Lin Ma	4-1 (11-8, 11-5, 9-11, 11-9, 11-5)
Men's China Open from 23 May to 27 May 2012
Round of 16	defeated by	Long Ma	4-2 (8-11,11-5,11-6,8-11,11-5,11-2)
Men's Japan Open from 6 June to 10 June 2012
Round of 16	defeated by	Alexander Shibaev	4-0 (11-8,11-3,11-3,11-3)
Men's Olympic Games - Team from 28 July to 8 August 2012
Round of 16	defeat	Eugene Zhen Wang	3-0 (11-6,12-10,11-9)
Quarter-Finals	defeated by	Peng Tang	3-1 (7-11,11-7,11-7,11-3)
Men's German Open from 31 October to 4 November 2012
Round of 16	defeat	Kenta Matsudaira	4-0 (11-9,12-10,11-9,11-7)
Quarter-Finals	defeated by	Timo Boll	4-0 (11-4,11-7,11-9,11-3)
Men's Pro Tour Grand Finals from 6 December to 9 December 2012
Round of 16	defeated by	Lin Ma	4-2 (11-13,11-9,8-11,11-8,11-4,11-6)

2011

Victory : 0
Final : 0
Summary : 2 Victories / 2 Defeats

Men's World Championships from 8 May to 15 May 2011
Round of 128	defeat	Liam Pitchford	4-2 (8-11, 12-10, 10-12, 11-3, 11-6, 11-8)
Round of 64	defeated by	Lin Ma	4-1 (9-11, 11-8, 13-11, 11-7, 11-7)
Men's Japan Open from 7 July to 10 July 2011
Quarter-Finals	defeat	Hongyuan Song	4-1 (11-5, 14-12, 8-11, 11-6, 14-12)
Semi-Finals	defeated by	Seiya Kishikawa	4-0 (11-8, 11-2, 12-10, 11-8)

Results - Doubles

2021

Victory : 0
Final : 0
Summary : 3 Victories / 1 Defeats

Men's Olympic Games - Team from 24 July to 31 July 2021
Round of 16	K. Niwa - J. Mizutani	defeat	H. Hu - X. Yan	3-0 (11-7, 11-3, 11-8)
Quarter-Finals	K. Niwa - T. Harimoto	defeat	K. Karlsson - A. Kallberg	3-1 (11-6,11,8-11,11-9)
Semi-Finals	K. Niwa - J. Mizutani	defeated by	P. Franziska - T. Boll	3-2 (11-2,11-3,9-11,8-11,11-7)
Third Place Match	J. Mizutani - K. Niwa	defeat	S. Lee - Y. Jung	3-1 (11-9, 8-11, 15-13, 11-5)

2019

Victory : 0
Final : 0
Summary : 4 Victories / 6 Defeats

China Open Mixed Doubles from 28 May to 2 June 2019
Round of 16	K. Niwa - M. Ito	defeat	L. Pistej - B. Balazova	3-1 (11-6, 7-11, 13-11, 13-11)
Quarter-Finals	K. Niwa - M. Ito	defeat	S. Fegerl - S. Polcanova	3-0 (11-9, 11-9, 11-8)
Semi-Finals	K. Niwa - M. Ito	defeated by	Y. Lin - I. Cheng	3-2 (13-11, 6-11, 11-8, 4-11, 11-8)
Japan Open Mixed Doubles from 14 June to 16 June 2019
Round of 16	K. Niwa - M. Ito	defeat	B. Afanador - A. Diaz	3-1 (11-6, 11-9, 11-13, 11-9)
Quarter-Finals	K. Niwa - M. Ito	defeated by	Y. Lin - I. Cheng	3-1 (11-9, 11-8, 4-11, 11-7)
Men's Korea Open Doubles from 4 July to 7 July 2019
Round of 16	T. Harimoto - K. Niwa	defeat	J. An - D. Cho	3-2 (11-8, 12-10, 9-11, 8-11, 11-5)
Quarter-Finals	T. Harimoto - K. Niwa	defeated by	Y. Jung - S. Lee	3-1 (11-4, 7-11, 11-8, 11-7)
Men's Australian Open - Doubles from 11 July to 14 July 2019
Round of 16	T. Harimoto - K. Niwa	defeated by	P. Franziska - R. Walther	3-2 (5-11, 11-6, 11-6, 7-11, 11-9)
Men's Team World Cup from 6 November to 10 November 2019
Quarter-Finals	K. Niwa - M. Yoshimura	defeated by	P. Franziska - T. Boll	3-1 (7-11,11-2,11-5,11-5)
Semi-Finals	K. Niwa - M. Yoshimura	defeated by	J. Liang - X. Xu	3-0 (11-6,11-6,11-6)

2018

Victory : 0
Final : 1 (Men's Team World Cup)
Summary : 5 Victories / 4 Defeats

Men's Team World Cup from 22 February to 25 February 2018
Quarter-Finals	K. Niwa - J. Ueda	defeat	S. Lam - P. Ng	3-2 (9-11, 13-11-5, 3-11, 13-11-4, 13-11-6)
Semi-Finals	J. Ueda - K. Niwa	defeat	S. Lee - Y. Jung	3-2 (15-13-11, 6-11, 12-10-12, 13-11-9, 13-11-5)
Final	J. Ueda - K. Niwa	defeated by	X. Xu - L. Ma	3-0 (13-11-8, 13-11-9, 13-11-7)
Men's Korea Open Doubles from 19 July to 22 July 2018
Round of 16	K. Niwa - J. Ueda	defeat	J. Dyjas - A. Robles	3-1 (11-6, 11-7, 9-11, 12-10)
Quarter-Finals	K. Niwa - J. Ueda	defeated by	W. Jang - J. Lim	3-1 (12-10, 5-11, 11-8, 11-4)
Men's Australian Open - Doubles from 26 July to 29 July 2018
Round of 16	K. Niwa - J. Ueda	defeat	A. Kallberg - L. Pistej	3-1 (9,9,-11,8)
Quarter-Finals	K. Niwa - J. Ueda	defeated by	W. Jang - J. Lim	3-1 (13-15, 11-3, 11-9, 11-6)
Men's Bulgaria Open - Doubles from 16 August to 19 August 2018
Round of 16	K. Niwa - J. Ueda	defeat	C. Nuytinck - Q. Robinot	3-2 (8-11, 11-9, 6-11, 11-6, 11-7)
Quarter-Finals	K. Niwa - J. Ueda	defeated by	P. Drinkhall - L. Pitchford	3-1 (11-3, 5-11, 11-8, 11-6)

2017

Victory : 1 (Men's Austrian Open Doubles)
Final : 1 (Men's Japan Open Doubles)
Summary : 14 Victories / 7 Defeats

Men's Qatar Open Doubles from 21 February to 26 February 2017
Round of 16	K. Niwa - M. Yoshimura	defeated by	C. Chen - H. Chiang	3-2 (12-14, 10-12, 11-3, 11-8, 11-8)
Men's Asian Championships - Doubles from 9 April to 16 April 2017
Round of 32	K. Niwa - M. Yoshimura	defeat	W. Kang - K. Ro	3-0 (11-2, 11-2, 12-10)
Round of 16	K. Niwa - M. Yoshimura	defeat	Z. Kenjaev - G. Levchenko	3-0 (11-7, 11-5, 11-6)
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	C. Chen - C. Liao	3-2 (11-5, 11-7, 9-11, 6-11, 11-9)
Semi-Finals	K. Niwa - M. Yoshimura	defeated by	Z. Fan - G. Lin	3-0 (11-5, 11-9, 11-3)
Men's Korea Open Doubles from 18 April to 23 April 2017
Round of 16	K. Niwa - M. Yoshimura	defeated by	W. Jang - S. Jeong	3-2 (5-11, 8-11, 11-8, 11-9, 11-6)
Men's World Championships - Doubles from 29 May to 5 June 2017
Round of 64	K. Niwa - M. Yoshimura	defeat	G. Gomez - J. Lamadrid	4-0 (11-4, 11-4, 11-8, 11-6)
Round of 32	K. Niwa - M. Yoshimura	defeat	C. Pletea - H. Szocs	4-1 (11-8, 11-9, 12-10, 7-11, 11-4)
Round of 16	K. Niwa - M. Yoshimura	defeat	K. Karlsson - M. Karlsson	4-3 (8-11, 11-8, 11-9, 7-11, 9-11, 12-10, 11-6)
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	P. Platonov - V. Samsonov	4-0 (11-8, 11-8, 11-6, 11-8)
Semi-Finals	K. Niwa - M. Yoshimura	defeated by	Z. Fan - X. Xu	4-0 (11-7, 11-2, 11-7, 11-4)
Men's Japan Open Doubles from 14 June to 18 June 2017
Round of 16	K. Niwa - M. Yoshimura	defeat	B. Duda - D. Qiu	3-2 (5-11, 8-11, 11-7, 11-8, 11-9)
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	K. Ho - C. Wong	3-1 (11-8, 11-8, 9-11, 11-6)
Semi-Finals	K. Niwa - M. Yoshimura	defeat	M. Morizono - Y. Oshima	3-1 (11-7, 11-9, 6-11, 11-9)
Final	K. Niwa - M. Yoshimura	defeated by	L. Ma - X. Xu	3-0 (11-9, 11-3, 11-7)
Men's China Open Doubles from 20 June to 25 June 2017
Round of 16	K. Niwa - Y. Oshima	defeated by	T. Flore - E. Lebesson	3-1 (11-8, 14-12, 6-11, 11-8)
Men's Austrian Open Doubles from 21 September to 24 September 2017
Round of 16	K. Niwa - J. Ueda	defeat	M. Allegro - F. Lambiet	3-0 (11-3, 11-5, 11-6)
Quarter-Finals	K. Niwa - J. Ueda	defeat	A. Anthony Arputharaj - S. Gnanasekaran	3-0 (11-6, 14-12, 11-5)
Semi-Finals	K. Niwa - J. Ueda	defeat	K. Ho - C. Wong	3-0 (12-10, 12-10, 11-9)
Final	K. Niwa - J. Ueda	defeat	R. Filus - R. Walther	3-1 (11-7, 9-11, 11-9, 11-8)
Men's German Open Doubles from 7 November to 12 November 2017
Round of 16	K. Niwa - J. Ueda	defeated by	S. Lam - Z. Yu	3-0 (14-12, 11-6, 11-4)

2016

Victory : 0
Finals : 3 (Men's Qatar Open Doubles, Men's Polish Open Doubles, Men's Olympic Games - Team)
Summary : 7 Victories / 8 Defeats

Men's Qatar Open Doubles from 23 March to 27 March 2016
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	A. Karakasevic - B. Tokic	3-1 (7-11,11-3,11-8,13-11)
Semi-Finals	K. Niwa - M. Yoshimura	defeat	Y. Jung - S. Lee	3-2 (11-9, 9-11, 12-10, 6-11, 11-8)
Final	K. Niwa - M. Yoshimura	defeated by	Z. Fan - J. Zhang	3-0 (11-8, 11-9, 11-7)
Men's Polish Open Doubles from 20 April to 24 April 2016
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	K. Ho - S. Lam	3-2 (10-12, 11-7, 8-11, 11-6, 11-5)
Semi-Finals	K. Niwa - M. Yoshimura	defeat	Y. Jung - S. Lee	3-0 (11-4, 11-3, 11-7)
Final	K. Niwa - M. Yoshimura	defeated by	M. Morizono - Y. Oshima	3-0 (16-14, 11-8, 11-8)
Men's Japan Open Doubles from 15 June to 19 June 2016
Quarter-Finals	K. Niwa - M. Yoshimura	defeated by	L. Ma - X. Xu	3-1 (11-6, 10-12, 11-8, 11-8)
Men's Olympic Games - Team from 6 August to 17 August 2016
Round of 16	K. Niwa - M. Yoshimura	defeated by	D. Gorak - Z. Wang	3-2 (7-11,11-9,11-7,6-11,11-9)
Quarter-Finals	M. Yoshimura - K. Niwa	defeat	K. Ho - P. Tang	3-1 (11-5,8-11,11-8,11-4)
Semi-Finals	K. Niwa - M. Yoshimura	defeat	B. Steger - T. Boll	3-1 (11-5,13-15,11-4,11-5)
Final	K. Niwa - M. Yoshimura	defeated by	X. Xu - J. Zhang	3-1 (4-11,11-6,11-9,11-5)
Men's China Open Doubles from 14 September to 18 September 2016
Quarter-Finals	K. Niwa - Y. Oshima	defeat	W. Green - W. Tao	3-0 (11-8,11-5,11-6)
Semi-Finals	K. Niwa - Y. Oshima	defeated by	L. Ma - J. Zhang	3-0 (11-9, 11-8, 11-9)
Men's Swedish Open Doubles from 16 November to 20 November 2016
Quarter-Finals	K. Niwa - M. Yoshimura	defeated by	K. Matsudaira - J. Ueda	3-0 (11-4, 11-5, 11-6)
Men's Pro Tour Grand Finals Doubles from 15 December to 11 December 2016
Quarter-Finals	K. Niwa - M. Yoshimura	defeated by	Y. Jung - S. Lee	4-3 (11-6, 4-11, 10-12, 16-14, 14-12, 9-11, 16-14)

2015

Victory : 0
Final : 0
Summary : 9 Victories / 6 Defeats

Men's German Open Doubles from 18 March to 22 March 2015
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	F. Kuzmin - G. Vlasov	3-2 (11-9,11-8,10-12,9-11,11-8)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	T. Boll - P. Franziska	3-0 (11-5, 13-11, 11-5)
Men's Spanish Open Doubles from 25 March to 29 March 2015
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	R. Lorentz - A. Robinot	3-1 (11-6, 3-11, 11-5, 11-6)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	Z. He - C. Machado	3-2 (3-11, 6-11, 11-5, 11-3, 11-2)
Men's World Championships - Doubles from 26 April to 3 May 2015
Round of 64	K. Matsudaira - K. Niwa	defeat	O. Onaolapo - S. Toriola	w.o.
Round of 32	K. Matsudaira - K. Niwa	defeat	K. Assar - O. Assar	4-0 (12-10, 11-5, 11-6, 11-7)
Round of 16	K. Matsudaira - K. Niwa	defeat	T. Apolonia - J. Monteiro	4-2 (11-8, 9-11, 11-9, 3-11, 11-6, 11-5)
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	H. Kim - S. Pak	4-0 (11-3, 11-7, 12-10, 16-14)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	Z. Fan - Y. Zhou	4-0 (11-6, 11-7, 11-6, 11-6)
Mixed World Championships - Doubles from 26 April to 3 May 2015
Round of 32	K. Niwa - S. Hirano	defeat	M. Karlsson - M. Ekholm	4-1 (11-8,11-7,4-11,14-12,11-9)
Round of 16	K. Niwa - S. Hirano	defeated by	C. Wong - H. Doo	4-0 (11-7, 11-8, 11-5, 11-6)
Men's Japan Open Doubles from 24 June to 28 June 2015
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	L. Ma - X. Xu	3-1 (11-7, 11-6, 7-11, 12-10)
Men's Asian Championships - Doubles from 26 September to 3 October 2015
Round of 16	K. Niwa - M. Yoshimura	defeat	S. Gnanasekaran - S. Shetty	3-0 (11-8, 14-12, 11-3)
Quarter-Finals	K. Niwa - M. Yoshimura	defeat	H. Chiang - C. Chuang	3-1 (8-11, 11-4, 15-13, 11-6)
Semi-Finals	K. Niwa - M. Yoshimura	defeated by	Z. Fan - X. Xu	4-1 (12-10, 9-11, 11-6, 11-5, 11-9)

2014

Victory : 0
Final : 1 (Men's Pro Tour Grand Finals Doubles)
Summary : 5 Victories / 5 Defeats

Men's China Open Doubles from 4 June to 8 June 2014
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	C. Chen - C. Chuang	3-1 (13-11,5-11,14-12,12-10)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	X. Xu - J. Zhang	3-0 (11-5, 12-10, 11-4)
Men's Japan Open Doubles from 18 June to 22 June 2014
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	K. Karlsson - M. Karlsson	3-2 (7-11, 11-8, 11-5, 7-11, 11-9)
Men's Czech Open - Doubles from 27 August to 31 August 2014
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	M. Freitas - J. Lee	3-0 (11-8,11-8,11-8)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	J. Ueda - K. Yoshimura	3-2 (8-11, 7-11, 15-13, 11-4, 11-6)
Men's Russian Open Doubles from 5 November to 9 November 2014
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	W. Jang - Y. Jung	3-0 (11-9,11-7,11-9)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	F. Kuzmin - G. Vlasov	3-0 (11-6, 11-8, 11-9)
Men's Pro Tour Grand Finals Doubles from 11 December to 14 November 2014
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	C. Chen - C. Chuang	4-0 (11-6,11-3,11-3,11-5)
Semi-Finals	K. Matsudaira - K. Niwa	defeat	P. Tang - C. Wong	4-1 (10-12, 11-9, 17-15, 11-6, 11-7)
Final	K. Matsudaira - K. Niwa	defeated by	E. Cho - H. Seo	4-3 (8-11, 12-10, 11-5, 10-12, 11-6, 6-11, 11-9)

2013

Victory : 0
Finals : 2 (Men's Japan Open Doubles, Men's China Harmony Open Doubles)
Summary : 5 Victories / 4 Defeats

Men's World Championships - Doubles from 13 May to 20 May 2013
Round of 32	K. Matsudaira - K. Niwa	defeat	A. Gacina - T. Kolarek	4-0 (11-6, 11-9, 11-8, 11-5)
Round of 16	K. Matsudaira - K. Niwa	defeated by	S. Kishikawa - J. Mizutani	4-3 (11-7, 8-11, 6-11, 11-8, 11-2, 6-11, 12-10)
Men's Japan Open Doubles from 19 June to 23 June 2013
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	A. Liventsov - M. Paykov	3-0 (11-5, 11-3, 11-8)
Semi-Finals	K. Matsudaira - K. Niwa	defeat	Z. Yang - J. Zhan	3-1 (7-11, 11-3, 13-11, 11-8)
Final	K. Matsudaira - K. Niwa	defeated by	J. Ueda - M. Yoshimura	3-1 (7-11, 11-8, 11-6, 11-8)
Men's China Harmony Open Doubles from 14 August to 18 August 2013
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	H. Chiang - S. Huang	3-2 (8-11,11-6,11-6,7-11,11-8)
Semi-Finals	K. Matsudaira - K. Niwa	defeat	C. Chen - C. Chuang	3-2 (9-11, 11-5, 11-7, 13-15, 11-5)
Final	K. Matsudaira - K. Niwa	defeated by	L. Ma - X. Xu	3-1 (7-11, 11-4, 11-7, 11-5)
Men's Polish Open Doubles from 6 November to 10 November 2013
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	H. Chiang - S. Huang	3-0 (11-1, 11-7, 11-8)

2012

Victory : 1 (Men's Polish Open Doubles)
Final : 1 (Men's Pro Tour Grand Finals Doubles)
Summary : 7 Victories / 5 Defeats

Men's Qatar Open Doubles from 7 February to 12 February 2012
Quarter-Finals	S. Kishikawa - K. Niwa	defeated by	K. Chan - K. Matsudeira	4-1 (14-12, 11-6, 7-11, 11-9, 11-7)
Men's Korea Open Doubles from 16 May to 20 May 2012
Quarter-Finals	S. Kishikawa - K. Niwa	defeated by	L. Ma - X. Xu	4-1 (11-5, 11-8, 16-14, 9-11, 11-7)
Men's Japan Open Doubles from 6 June to 10 June 2012
Quarter-Finals	S. Kishikawa - K. Niwa	defeat	N. Gao - H. Li	4-1 (11-4,11-7,11-3,8-11,12-10)
Semi-Finals	S. Kishikawa - K. Niwa	defeated by	M. Kim - A. Viktor	4-1 (11-5,11-9,12-14,11-3,11-9)
Men's Olympic Games - Team from 28 July to 8 August 2012
Round of 16	S. Kishikawa - K. Niwa	defeat	P. Hinse - A. Ho	3-0 (11-7,11-4,11-6)
Quarter-Finals	K. Niwa - S. Kishikawa	defeated by	C. Leung - T. Jiang	3-1 (8-11,14-12,11-8,13-11)
Men's Polish Open Doubles from 7 November to 11 November 2012
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	R. Devos - E. Vanrossomme	4-0 (11-5,11-4,11-7,11-6)
Semi-Finals	K. Matsudaira - K. Niwa	defeat	F. Chen - J. Zhan	4-2 (15-13,7-11,14-12,7-11,11-6,12-10)
Final	K. Matsudaira - K. Niwa	defeat	H. Wang - Y. Zhou	4-1 (8-11,11-7,11-7,11-6,12-10)
Men's Pro Tour Grand Finals Doubles from 6 December to 9 December 2012
Quarter-Finals	S. Kishikawa - K. Niwa	defeat	M. Kim - H. Seo	4-2 (9-11,11-8,9-11,11-9,11-5,11-9)
Semi-Finals	S. Kishikawa - K. Niwa	defeat	S. Oh - S. Ryu	4-3 (12-10,11-9,11-6,6-11,4-11,3-11,11-6)
Final	S. Kishikawa - K. Niwa	defeated by	N. Gao - H. Li	4-0 (11-5,11-2,11-6,11-8)

2011

Victory : 0
Finals : 2 (Men's Korea Open Doubles, Men's Japan Open Doubles)
Summary : 7 Victories / 7 Defeats

Men's Qatar Open Doubles from 9 February to 13 February 2011
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	L. Wang - X. Xu	4-0 (11-4, 11-5, 11-5, 11-8)
Men's United Arab Emirates Open Doubles from 15 February to 19 February 2011
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	L. Ma - H. Wang	4-2 (11-1, 7-11, 11-7, 7-11, 11-5, 11-6)
Men's German Open Doubles from 23 February to 27 February 2011
Quarter-Finals	K. Matsudaira - K. Niwa	defeated by	T. Apolonia - J. Monteiro	4-1 (11-8, 11-13, 11-7, 11-3, 11-8)
Men's Spanish Open Doubles from 6 April to 10 April 2011
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	C. Legout - A. Salifou	4-2 (5-11,11-3,12-10,11-7,4-11,11-8)
Semi-Finals	K. Matsudaira - K. Niwa	defeated by	J. Lee - S. Oh	4-2 (12-14, 16-14, 11-8, 13-15, 11-9, 11-1)
Men's World Championships - Doubles from 8 May to 15 May 2011
Round of 64	K. Matsudaira - K. Niwa	defeat	E. Lashin - A. Saleh	4-0 (11-9, 11-4, 11-7, 13-11)
Round of 32	K. Matsudaira - K. Niwa	defeat	M. Jevtovic - A. Karakasevic	4-2 (11-6, 5-11, 12-10, 11-8, 5-11, 11-6)
Round of 16	K. Matsudaira - K. Niwa	defeated by	P. Baum - B. Steger	4-0 (11-6, 11-6, 11-9, 11-6)
Men's Korea Open Doubles from 29 June to 3 July 2011
Quarter-Finals	K. Matsudeira - K. Niwa	defeat	N. Gao - H. Li	4-3 (11-5, 10-12, 15-13, 7-11, 11-9, 12-10)
Semi-Finals	K. Matsudeira - K. Niwa	defeat	S. Oh - A. Viktor	4-2 (9-11, 11-8, 7-11, 18-16, 12-10, 11-8)
Final	K. Matsudeira - K. Niwa	defeated by	Y. Jin - H. Song	4-3 (13-15, 6-11, 11-6, 11-6, 11-6, 10-12, 13-11)
Men's Japan Open Doubles from 7 July to 10 July 2011
Quarter-Finals	K. Matsudaira - K. Niwa	defeat	H. Chiang - S. Huang	4-2 (9-11,11-4,11-9,11-4,7-11,11-5)
Semi-Finals	K. Matsudaira - K. Niwa	defeat	K. Chan - K. Matsudeira	4-1 (11-9, 5-11, 12-10, 11-5, 11-8)
Final	K. Matsudaira - K. Niwa	defeated by	G. Lin - J. Wu	4-1 (11-6, 11-9, 9-11, 11-7, 11-9)

Table tennis - Koki Niwa

Resultats

Koki Niwa - Results

Identite

Koki Niwa - Identity

Palmares

Koki Niwa - Titles, trophies and places of honor

Contact

Postal Address