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    vs.      
Junya Iyanaga leads the series against Koutarou Ootsuka, 2-1.

event round table player one result player two
2008 World Championship66Iyanaga, Junya (1884)Won 2-0Ootsuka, Koutarou (2098)
Grand Prix Kobe 2009814Iyanaga, Junya (1999)Won 2-0Ootsuka, Koutarou (2117)
Grand Prix Bangkok 2009818Iyanaga, Junya (1934)Lost 1-2Ootsuka, Koutarou (2152)