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    vs.      
Geoffrey Siron leads the series against Gadiel Szleifer, 2-1-1.

event round table player one result player two
Pro Tour Columbus 2004141Siron, Geoffrey (1958)Won 2-0Szleifer, Gadiel (1866)
Grand Prix Phoenix 2006613Siron, Geoffrey (1928)Lost 1-2Szleifer, Gadiel (1937)
Grand Prix Phoenix 2006141Siron, Geoffrey (1999)IDSzleifer, Gadiel (1984)
2007 World Championship1581Siron, Geoffrey (1827)Won 2-0Szleifer, Gadiel (1674)