Marty Herrmann vs. William Pierson — Career Comparison

On the career pitching numbers, Marty Herrmann posted a stronger line than William Pierson. Marty Herrmann posted stronger numbers in ERA (0 vs 3.38) and WHIP (1.000 vs 1.969). By the career numbers, Marty Herrmann 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.