Stan Klopp vs. John Mackinson — Career Comparison

On the career pitching numbers, Stan Klopp posted a stronger line than John Mackinson. Stan Klopp posted stronger numbers in ERA (4.27 vs 7.36) and home runs allowed (0.19 per nine innings vs 1.23). By the career numbers, Stan Klopp 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.