Justin Anderson vs. John Mackinson — Career Comparison

On the career pitching numbers, Justin Anderson posted a stronger line than John Mackinson. Justin Anderson posted stronger numbers in ERA (4.63 vs 7.36) and WHIP (1.542 vs 1.773). By the career numbers, Justin Anderson 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.