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    vs.      
Koutarou Ootsuka is tied in the series against Kazuki Kato, 1-1.

event round table player one result player two
Grand Prix Sendai 2004722Ootsuka, Koutarou (1569)Won 2-0Kato, Kazuki (1855)
Grand Prix Yokohama 20041414Ootsuka, Koutarou (1750)Lost 0-2Kato, Kazuki (1875)