Jonathan Aro vs. Justin Hagenman — Career Comparison

On the career pitching numbers, Justin Hagenman posted a stronger line than Jonathan Aro. Justin Hagenman posted stronger numbers in ERA (4.56 vs 6.55) and WHIP (1.099 vs 1.909). By the career numbers, Justin Hagenman 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.