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    vs.      
Hiroki Ishiyama leads the series against Hajime Kobayashi, 2-0.

event round table player one result player two
Grand Prix Yokohama 20033279Ishiyama, Hiroki (1466)Won 2-0Kobayashi, Hajime (1389)
Grand Prix Sendai 20044166Ishiyama, Hiroki (1496)Won 2-1Kobayashi, Hajime (1312)