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    vs.      
Koutarou Ootsuka leads the series against Tomoharu Saito, 2-1.

event round table player one result player two
Grand Prix Singapore 2007133Ootsuka, Koutarou (1910)Won 2-1Saito, Tomoharu (2057)
Grand Prix Shizuoka 20081539Ootsuka, Koutarou (1968)Won 2-0Saito, Tomoharu (1912)
Pro Tour San Diego 20101344Ootsuka, Koutarou (1933)Lost 0-2Saito, Tomoharu (2066)