Harmony China Open 2013 Highlights: Koki Niwa vs Kim Hyok Bong (Round 1)

Harmony China Open 2013 Highlights: Ma Long/Xu Xin vs Kenta Matsudaira/Koki Niwa (Final)

Harmony China Open 2013 Highlights: Ma Long vs Koki Niwa (1/2 Final)

Harmony China Open 2013 Highlights: Kenta Matsudaira vs Koki Niwa (1/4 Final)

Harmony China Open 2013 Highlights: Kenta Matsudaira/Koki Niwa vs Chuang C.Y./Chen C. An (1/2 Final)

Korea Open 2014 Highlights: Koki Niwa Vs Cho Seungmin (Round 1)

China Open 2014 Highlights: Koki Niwa Vs Chuang Chih Yuan (Round Of 16)

Harmony China Open 2013 Highlights: Cho Eon Rae/Kim Donghyun vs Kim Hyok Bong/Pak Sin Hyok

Harmony China Open 2013 Highlights: Kim Hyok Bong vs Chew Zhe Yu Clarence (qualification)

Harmony China Open 2013 Highlights: Kim Min Seok vs Liu Yi (Round 1)

Harmony China Open 2013 Highlights: Kenta Matsudaira/Koki Niwa vs Chiang H.C./Huang S.S.(1/4 Final)

Japan Open 2013 Highlights: Koki Niwa vs Patrick Franziska (Round 3)

Japan Open 2013 Highlights: Koki Niwa vs Thomas Keinath (Round 2)

Russian Open 2014 Highlights: Koki Niwa Vs Liam Pitchford (Round Of 16)

2016 China Open Highlights: Zhang Jike vs Koki Niwa (R16)

2016 Swedish Open Highlights: Mattias Karlsson vs Koki Niwa (R16)

China Harmony Open 2011: Koki Niwa-Chen Chien-An

German Open 2016 Highlights: MA Long vs NIWA Koki (R16)

Russian Open 2014 Highlights: Koki Niwa Vs Paul Drinkhall (FINAL)

2018 Qatar Open Highlights I Koki Niwa vs Achanta Sharath Kamal (R32)

2017 Austrian Open Highlights: Koki Niwa/Jin Ueda vs Ruwen Filus/Ricardo Walther (Final)

Japan Open 2013 Highlights: Koki Niwa vs Masato Shiono (1/4 Final)

2016 Qatar Open Highlights: Zhang Jike/Fan Zhendong vs Koki Niwa/Maharu Yoshimura (Final)

Harmony China Open 2013 Highlights: Chen Meng/Zhu Yuling vs Kim Hye Song/Kim Jong (Final)

Harmony China Open 2013 Highlights: Yan An/Liu Yi vs Jung Youngsik/Kim Min Seok (Round 1)

Harmony China Open 2013 Highlights: Asuka Machi vs Ri Kwang Won (U21 Round 1)