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    vs.      
Valentin Mackl leads the series against Grzegorz Kowalski, 2-0.

event round table player one result player two
Grand Prix Verona 2013945Mackl, Valentin (1778)Won 2-1Kowalski, Grzegorz (1958)
Grand Prix Manchester 2014715Mackl, Valentin (2016)Won 2-1Kowalski, Grzegorz (1822)