Mark Mercer vs. Aneurys Zabala — Career Comparison

On the career pitching numbers, Aneurys Zabala posted a stronger line than Mark Mercer. Aneurys Zabala posted stronger numbers in ERA (0 vs 4.7) and WHIP (1.500 vs 1.826). By the career numbers, Aneurys Zabala 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.