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    vs.      
Keiichi Chijimi is tied in the series against Masashi Oiso, 1-1.

event round table player one result player two
Grand Prix Yamagata 2006927Chijimi, Keiichi (1733)Lost 0-2Oiso, Masashi (1867)
Grand Prix Yamagata 20061429Chijimi, Keiichi (1685)Won 2-0Oiso, Masashi (1820)