Jack Pfiester vs. Mark Prior — Career Comparison

On the career pitching numbers, Jack Pfiester posted a stronger line than Mark Prior. Jack Pfiester posted stronger numbers in ERA (2.02 vs 3.51) and WHIP (1.089 vs 1.240). By the career numbers, Jack Pfiester had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.