2016 Polish Open Highlights: Koki Niwa/Maharu Yoshimura vs Yuya Oshima/M.Morizono (Final)

2016 Japan Open Highlights: Ma Long/Xu Xin vs Koki Niwa/Maharu Yoshimura (1/4)

2016 Qatar Open Highlights: Ma Long/Xu Xin vs Koki Niwa/Maharu Yoshimura (R1)

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

2016 China Open Highlights: Ma Long/Zhang Jike vs Koki Niwa/Yuya Oshima (1/2)

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

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

2018 Team World Cup Highlights I Koki Niwa/Yuya Oshima vs Ahmed Saleh/Mohamed El-Beiali (Group)

2016 Polish Open Highlights: Jun Mizutani vs Maharu Yoshimura (1/2)

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

Tomokazu Harimoto/Koki Niwa vs Jeoung Youngsik/Lee Sangsu | 2019 ITTF Korea Open Highlights (1/4)

2017 Austrian Open Highlights: Lin Gaoyuan vs Koki Niwa (1/4)

Swedish Open 2015 Highlights: FAN Zhendong/ZHANG Jike vs MORIZONO Masataka/OSHIMA Yuya (1/2)

2016 Kuwait Open Highlights: Jun Mizutani vs Koki Niwa (R16)

Jun Mizutani vs Koki Niwa | 2019 ITTF Hong Kong Open Highlights (R16)

Koki Niwa vs Lin Yun-Ju | 2019 ITTF Australian Open Highlights (R32)

Ma Long vs Koki Niwa | 2019 ITTF China 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 vs Sathiyan Gnanasekaran | 2019 ITTF Hong Kong Open Highlights (R32)

Koki Niwa vs Patrick Franziska | 2019 ITTF Qatar Open Highlights (R16)

Tomokazu Harimoto/Koki Niwa vs An Jaehyun/Cho D. | 2019 ITTF Korea Open Highlights (R16)

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)

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)

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)