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    vs.      
Joseph Hartline is tied in the series against David Humpherys, 1-1.

event round table player one result player two
Grand Prix Columbus 2004429Hartline, Joseph (1553)Won 2-0Humpherys, David (1971)
Grand Prix Columbus 20041056Hartline, Joseph (1582)Lost 1-2Humpherys, David (1958)