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    vs.      
Jack Kiefer is tied in the series against Mike Sigrist, 1-1.

event round table player one result player two
Pro Tour Dominaria215Kiefer, Jack (2025)Lost 0-2Sigrist, Mike (1984)
Pro Tour Dominaria4101Kiefer, Jack (2019)Won 2-1Sigrist, Mike (1977)