William Pierson vs. Matt Wotherspoon — Career Comparison

On the career pitching numbers, William Pierson posted a stronger line than Matt Wotherspoon. William Pierson posted stronger numbers in ERA (3.38 vs 15.43) and WHIP (1.969 vs 2.571). By the career numbers, William Pierson 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.