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    vs.      
William Hahn is tied in the series against Jonathan Melamed, 1-1.

event round table player one result player two
Grand Prix Denver 2008379Hahn, William (1535)Lost 1-2Melamed, Jonathan (1560)
Grand Prix Las Vegas 2017 (modern)490Hahn, William (1872)Won 2-1Melamed, Jonathan (1952)