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    vs.      
Jelger Wiegersma leads the series against Masashi Oiso, 2-0.

event round table player one result player two
Grand Prix Salt Lake City 20051012Wiegersma, Jelger (1848)Won 2-0Oiso, Masashi (2172)
Grand Prix Yamagata 2006435Wiegersma, Jelger (2054)Won 2-0Oiso, Masashi (1857)