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    vs.      
Florian Koch is tied in the series against Alexander Mertins, 1-1.

event round table player one result player two
Grand Prix Warsaw 20187166Koch, Florian (1809)Won 2-0Mertins, Alexander (1946)
Grand Prix Prague 20199701Koch, Florian (1828)Lost 1-2Mertins, Alexander (1932)