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    vs.      
Hidenori Katayama is tied in the series against Masaaki Nishimura, 1-1.

event round table player one result player two
Grand Prix Sapporo 2002397Katayama, Hidenori (1481)Won 2-0Nishimura, Masaaki (1464)
Grand Prix Okayama 2008717Katayama, Hidenori (1601)Lost 1-2Nishimura, Masaaki (1381)