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    vs.      
Shou Ishikawa leads the series against Masayo Ishikawa, 2-0.

event round table player one result player two
Grand Prix Niigata 20091436Ishikawa, Shou (1761)Won 2-1Ishikawa, Masayo (1895)
Grand Prix Yokohama 20107223Ishikawa, Shou (1734)Won 2-0Ishikawa, Masayo (1781)