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    vs.      
Haruki Usui is tied in the series against Yusuke Sasao, 1-1.

event round table player one result player two
Grand Prix Chiba 201815611Usui, Haruki (1816)Lost 0-2Sasao, Yusuke (1698)
Regional Championships Aichi 2023179Usui, Haruki (1815)Won 2-0Sasao, Yusuke (1703)