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

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