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)

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

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

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

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

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)

Koki Niwa Training | Liebherr 2019 World Table Tennis Championships

Koki Niwa vs Pucar Tomislav | 2019 World Championships Highlights (R16)

Koki Niwa vs Marcelo Aguirre | 2019 World Championships Highlights (R128)

Koki Niwa vs Jakub Dyjas | 2019 World Championships Highlights (R32)

Slowmotion Analysis - Fan Zhendong VS Koki Niwa - Push Long - 2017 WTTC

2018 World Team Championships Highlights | Koki Niwa vs Pavel Platonov (Group)

DHS ITTF Top 10 - 2018 Japan Open

DHS ITTF Top 10 - 2018 China Open

Zhang Jike vs Tomokazu Harimoto | 2018 Japan Open Highlights (Final)

Ito Mima vs Wang Manyu | 2018 Japan Open Highlights (Final)

Jeoung Youngsik/Lee Sangsu vs Liang Jingkun/Zhou Kai | 2018 Japan Open Highlights (Final)

Chen Xingtong vs Ito Mima | 2018 Japan Open Highlights (1/2)