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    vs.      
Riku Kumagai is tied in the series against Yimin Zhi, 1-1.

event round table player one result player two
Grand Prix Beijing 2018132Kumagai, Riku (1933)Lost 1-2Zhi, Yimin (1954)
Grand Prix Nagoya 2019FKumagai, Riku (2179)Won 2-0Zhi, Yimin (2179)