Kevin Frederick vs. Wilton Lopez — Career Comparison

On the career pitching numbers, Wilton Lopez posted a stronger line than Kevin Frederick. Wilton Lopez posted stronger numbers in ERA (3.54 vs 7.59) and WHIP (1.323 vs 1.785). By the career numbers, Wilton Lopez 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.