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    vs.      
Tatsuumi Kobayashi is tied in the series against Masaharu Shiraishi, 1-1.

event round table player one result player two
Grand Prix Shizuoka 20085285Kobayashi, Tatsuumi (1499)Lost 0-2Shiraishi, Masaharu (1469)
Grand Prix Niigata 20095172Kobayashi, Tatsuumi (1467)Won 2-0Shiraishi, Masaharu (1520)