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    vs.      
Hiroki Yamada leads the series against Kazumasa Hada, 1-0-1.

event round table player one result player two
Grand Prix Yokohama 2012274Yamada, Hiroki (1394)Won 2-0Hada, Kazumasa (1518)
Grand Prix Shizuoka 20136661Yamada, Hiroki (1476)Draw 1-1Hada, Kazumasa (1473)