Rheal Cormier vs. Kevin Frederick — Career Comparison

On the career pitching numbers, Rheal Cormier posted a stronger line than Kevin Frederick. Rheal Cormier posted stronger numbers in ERA (4.03 vs 7.59) and WHIP (1.311 vs 1.785). By the career numbers, Rheal Cormier 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.