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    vs.      
Hiroyuki Yamazaki leads the series against Masakazu Oosaki, 2-0.

event round table player one result player two
Grand Prix Sapporo 20024155Yamazaki, Hiroyuki (1513)Won 2-0Oosaki, Masakazu (1463)
Grand Prix Nagoya 20122249Yamazaki, Hiroyuki (1538)Won 2-1Oosaki, Masakazu (1230)