Erskine Mayer vs. Jose Mercedes — Career Comparison

On the career pitching numbers, Erskine Mayer posted a stronger line than Jose Mercedes. Erskine Mayer posted stronger numbers in ERA (2.96 vs 4.75) and WHIP (1.233 vs 1.455). By the career numbers, Erskine Mayer 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.