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    vs.      
Koutarou Ootsuka leads the series against Shougo Itou, 2-0.

event round table player one result player two
Grand Prix Shizuoka 2003672Ootsuka, Koutarou (1525)Won 2-0Itou, Shougo (1620)
Grand Prix Kobe 2008148Ootsuka, Koutarou (2024)Won 2-1Itou, Shougo (1818)