Michael Mercado vs. Johnnie Wittig — Career Comparison

On the career pitching numbers, Johnnie Wittig posted a stronger line than Michael Mercado. Johnnie Wittig posted stronger numbers in ERA (4.89 vs 11.81) and WHIP (1.650 vs 2.250). By the career numbers, Johnnie Wittig 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.