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    vs.      
Hayato Ishii is tied in the series against Takahiro Harano, 1-1.

event round table player one result player two
Grand Prix Sendai 20101544Ishii, Hayato (1767)Won 2-1Harano, Takahiro (1533)
Grand Prix Yokohama 20121068Ishii, Hayato (1839)Lost 1-2Harano, Takahiro (1674)