Johnny Allen vs. Brad Hennessey — Career Comparison

On the career pitching numbers, Johnny Allen posted a stronger line than Brad Hennessey. Johnny Allen posted stronger numbers in ERA (3.75 vs 4.69) and WHIP (1.326 vs 1.508). By the career numbers, Johnny Allen 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.