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    vs.      
Joao Duarte is tied in the series against Konstantin Firsov, 1-1.

event round table player one result player two
Grand Prix Helsinki 20001224Duarte, Joao (1496)Won 2-1Firsov, Konstantin (1501)
Grand Prix Valencia 2001334Duarte, Joao (1547)Lost 0-2Firsov, Konstantin (1501)