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    vs.      
Masakazu Matsushita leads the series against Ippei Sogabe, 2-0.

event round table player one result player two
Grand Prix Hiroshima 20064107Matsushita, Masakazu (1619)Won 2-1Sogabe, Ippei (1609)
Grand Prix Shizuoka 2008622Matsushita, Masakazu (1765)Won 2-1Sogabe, Ippei (1724)