Frank Barrett vs. John Mackinson — Career Comparison

On the career pitching numbers, Frank Barrett posted a stronger line than John Mackinson. Frank Barrett posted stronger numbers in ERA (3.51 vs 7.36) and WHIP (1.383 vs 1.773). By the career numbers, Frank Barrett 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.