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    vs.      
Ryuichi Karasawa leads the series against Koutarou Tsutai, 2-0.

event round table player one result player two
Grand Prix Yokohama 20135969Karasawa, Ryuichi (1498)Won 2-1Tsutai, Koutarou (1501)
Grand Prix Shizuoka 20132315Karasawa, Ryuichi (1479)Won 2-0Tsutai, Koutarou (1454)