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    vs.      
Tsuyoshi Iwai is tied in the series against Katsuhiro Mori, 1-1.

event round table player one result player two
Grand Prix Utsunomiya 20025108Iwai, Tsuyoshi (1670)Won 2-1Mori, Katsuhiro (1922)
Grand Prix Niigata 2005111Iwai, Tsuyoshi (1759)Lost 0-2Mori, Katsuhiro (2005)