Fred Hayner vs. Javier Martinez — Career Comparison

On the career pitching numbers, Javier Martinez posted a stronger line than Fred Hayner. Javier Martinez posted stronger numbers in ERA (4.83 vs 13.5) and WHIP (1.805 vs 3.000). By the career numbers, Javier 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.