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

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

2016 World Championships Highlights: Koki Niwa vs Yang Zi

2016 World Championships Highlights: Koki Niwa vs Marcos Freitas

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)

2016 World Championships Highlights: Koki Niwa vs Kiryl Barabanov

2016 World Championships Highlights: Mattias Karlsson vs Tomislav Pucar

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

Dimitrij Ovtcharov vs Tomislav Pucar | 2019 World Championships Highlights (R32)

2017 Men's World Cup Highlights I Koki Niwa vs Lee Sangsu (R16)

2016 World Tour Grand Finals Highlights: Fan Zhendong vs Koki Niwa (R16)

Tomokazu H./Koki Niwa vs Patrick F./Ricardo Walther | 2019 ITTF Australian Open Highlights (R16)

2017 Austrian Open Highlights: Koki Niwa vs Ruwen Filus (R16)

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

Koki Niwa/Mima Ito vs Adriana Diaz/Brian Afanador | 2019 ITTF Japan Open Highlights (R16)