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    vs.      
Takuya Osawa leads the series against Jonathan Sonne, 1-0-1.

event round table player one result player two
2005 World Championship149Osawa, Takuya (1928)Draw 1-1Sonne, Jonathan (2026)
2006 World Championship1860Osawa, Takuya (1902)Won 2-0Sonne, Jonathan (1922)