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    vs.      
Tsuyoshi Iwai is tied in the series against Wataru Okada, 1-1.

event round table player one result player two
Grand Prix Nagoya 20041340Iwai, Tsuyoshi (1682)Lost 1-2Okada, Wataru (1557)
Grand Prix Niigata 2005614Iwai, Tsuyoshi (1707)Won 2-1Okada, Wataru (1765)