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    vs.      
Masashi Oiso is tied in the series against Frank Karsten, 2-2.

event round table player one result player two
2004 World Championship1728Oiso, Masashi (1929)Won 2-0Karsten, Frank (1970)
Pro Tour Kobe 200664Oiso, Masashi (1837)Won 2-0Karsten, Frank (1927)
2007 World Championship252Oiso, Masashi (1869)Lost 1-2Karsten, Frank (2072)
2008 World Championship154Oiso, Masashi (1889)Lost 1-2Karsten, Frank (2002)