2016 World Championships Highlights: Koki Niwa vs Tang Peng

2016 World Championships Highlights: Koki Niwa vs Yang Zi

2016 World Championships Highlights: Koki Niwa vs Marcos Freitas

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

2018 World Team Championships Highlights | Koki Niwa vs Lam Siu Hang (R16)

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

Xu Xin vs Koki Niwa Highlights Asian Championships 2017

2016 World Championships Highlights: Koki Niwa vs Pang Xue Jie

2017 World Championships Highlights I Kristian Karlsson/M.Karlsson vs Koki Niwa/Maharu Y. (Round 3)

2018 World Team Championships Highlights | Koki Niwa vs Cedric Nuytinck (Group)

2017 World Championships Highlights I Xu Xin/Fan Zhendong vs Koki Niwa/M.Yoshimura (1/2)

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

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

2017 World Championships Highlights I Dimitrij Ovtcharov vs Koki Niwa (R16)

2017 World Championships | Highlights Fan Zhendong vs Koki Niwa (1/4)

2016 World Championships Highlights: Koki Niwa vs Kiryl Barabanov

2016 World Championships Highlights: Jung Youngsik vs Tang Peng

2016 World Championships Highlights: Stefan Fegerl vs Tang Peng

Feng Yi-Hsin vs Xiang Peng | 2019 ITTF World Junior Championships Highlights (Team Final)

2017 Asian Championships MW QF NIWA Koki YOSHIMURA Maharu CHEN Chien An LIAO Cheng Ting(TP

Koki Niwa Training | Liebherr 2019 World Table Tennis Championships

Point of the Day 2 presented by STIGA | Koki Niwa | 2019 Hong Kong Open

Koki Niwa/Mima Ito vs Lin Yun-Ju/Cheng I-Ching | 2019 ITTF China Open Highlights (1/2)

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

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)