Noki Niwa VS Kenta Masturiria 2020 Japan National Championships

Koki Niwa vs YOSHIDA Kaii | 2021 Japanese Table Tennis Championships

Koki Niwa Training | Liebherr 2019 World Table Tennis Championships

Team Japan arrive in Budapest | Liebherr 2019 ITTF World Table Tennis Championships

2016 Austrian Open Highlights: Koki Niwa vs Kenta Matsudaira (R16)

2016 World Championships Highlights: Koki Niwa vs Yang Zi

2016 World Championships Highlights: Koki Niwa vs Marcos Freitas

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

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)

JEONG Sangeun vs NIWA Koki 1/2 FULL MATCH HD Asian Championships 2017

2017 아시아탁구선수권 정상은vs니와코키 준결승 Asian Championships SF Jeong sang eun VS Niwa koki

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)

2016 World Championships Highlights: Koki Niwa vs Tang Peng

2016 World Championships Highlights: Koki Niwa vs Kiryl Barabanov

2017 Asian Championships MS QF NIWA Koki XU Xin(CHN)

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

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

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

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