Jonathan Aro vs. Mason Montgomery — Career Comparison

On the career pitching numbers, Mason Montgomery posted a stronger line than Jonathan Aro. Mason Montgomery posted stronger numbers in ERA (5.01 vs 6.55) and WHIP (1.563 vs 1.909). By the career numbers, Mason Montgomery 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.