Theodore Breitenstein vs. John Mackinson — Career Comparison

On the career pitching numbers, Theodore Breitenstein posted a stronger line than John Mackinson. Theodore Breitenstein posted stronger numbers in ERA (4.03 vs 7.36) and WHIP (1.449 vs 1.773). By the career numbers, Theodore Breitenstein 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.