Mel Bosser vs. John Mackinson — Career Comparison

On the career pitching numbers, Mel Bosser posted a stronger line than John Mackinson. Mel Bosser posted stronger numbers in ERA (3.38 vs 7.36) and WHIP (1.625 vs 1.773). By the career numbers, Mel Bosser 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.