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    vs.      
Haruki Usui is tied in the series against Yuya Hosokawa, 1-1.

event round table player one result player two
Regional Championships Yokohama 202393Usui, Haruki (1977)Won 2-0Hosokawa, Yuya (1960)
Regional Championships Aichi 202363Usui, Haruki (1890)Lost 0-2Hosokawa, Yuya (1981)