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    vs.      
Shouichi Watanabe is tied in the series against Tatsuhiko Ohki, 1-1.

event round table player one result player two
Grand Prix Kyoto 2017598Watanabe, Shouichi (1459)Lost 0-2Ohki, Tatsuhiko (1753)
Grand Prix Nagoya 20191398Watanabe, Shouichi (1672)Won 2-1Ohki, Tatsuhiko (1903)