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    vs.      
Riku Kumagai leads the series against Keisuke Sato, 3-0.

event round table player one result player two
Grand Prix Shizuoka 20135518Kumagai, Riku (1714)Won 2-0Sato, Keisuke (1490)
Kaldheim Championship136Kumagai, Riku (2118)Won 2-0Sato, Keisuke (1828)
Pro Tour Phyrexia810Kumagai, Riku (2111)Won 2-1Sato, Keisuke (1955)