Justin Martinez vs. Jim Willis — Career Comparison

On the career pitching numbers, Jim Willis posted a stronger line than Justin Martinez. Jim Willis posted stronger numbers in ERA (3.39 vs 3.77) and WHIP (1.417 vs 1.490). By the career numbers, Jim Willis 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.