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    vs.      
Norihiko Koshiba is tied in the series against Kazutaka Kobayashi, 1-1.

event round table player one result player two
Grand Prix Chiba 20153295Koshiba, Norihiko (1465)Lost 1-2Kobayashi, Kazutaka (1501)
Grand Prix Nagoya 20167850Koshiba, Norihiko (1464)Won 2-1Kobayashi, Kazutaka (1502)