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    vs.      
Onno Diermann leads the series against Andreas Hirszhorn, 1-0-1.

event round table player one result player two
Grand Prix Copenhagen 20199110Diermann, Onno (1570)Draw 1-1Hirszhorn, Andreas (1622)
Grand Prix Copenhagen 20191486Diermann, Onno (1545)Won 2-1Hirszhorn, Andreas (1590)