Hayden Harris vs. Willie Martinez — Career Comparison

On the career pitching numbers, Willie Martinez posted a stronger line than Hayden Harris. Willie Martinez posted stronger numbers in ERA (3 vs 3.38) and WHIP (0.667 vs 1.875). By the career numbers, Willie Martinez 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.