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    vs.      
Taisuke Ishii leads the series against Kazutaka Sada, 2-0.

event round table player one result player two
Grand Prix Sendai 20108166Ishii, Taisuke (1854)Won 2-0Sada, Kazutaka (1417)
Grand Prix Hiroshima 20116184Ishii, Taisuke (1789)Won 2-0Sada, Kazutaka (1433)