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    vs.      
David Humpherys is tied in the series against Mark Zajdner, 1-1.

event round table player one result player two
Grand Prix Montreal 2001624Humpherys, David (1922)Lost 0-2Zajdner, Mark (1504)
Pro Tour Amsterdam 2004919Humpherys, David (1966)Won 2-0Zajdner, Mark (1895)