Fred Hayner vs. Paul Mirabella — Career Comparison

On the career pitching numbers, Paul Mirabella posted a stronger line than Fred Hayner. Paul Mirabella posted stronger numbers in ERA (4.45 vs 13.5) and WHIP (1.589 vs 3.000). By the career numbers, Paul Mirabella 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.