Fred Hayner vs. Bill Mooneyham — Career Comparison

On the career pitching numbers, Bill Mooneyham posted a stronger line than Fred Hayner. Bill Mooneyham posted stronger numbers in ERA (4.52 vs 13.5) and WHIP (1.746 vs 3.000). By the career numbers, Bill Mooneyham 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.