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    vs.      
Devin Koepke is tied in the series against Mark Jacobson, 1-1.

event round table player one result player two
Grand Prix Omaha 20171241Koepke, Devin (1843)Lost 1-2Jacobson, Mark (2009)
Grand Prix Phoenix 20176151Koepke, Devin (1968)Won 2-1Jacobson, Mark (2019)