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    vs.      
Korey McDuffie is tied in the series against Jonathan Sonne, 1-1.

event round table player one result player two
Grand Prix Daytona Beach 2007463McDuffie, Korey (1574)Lost 0-2Sonne, Jonathan (1904)
Grand Prix Pittsburgh 2011392McDuffie, Korey (1934)Won 1-0Sonne, Jonathan (1975)