Jonathan Aro vs. Sparrow Morton — Career Comparison

On the career pitching numbers, Sparrow Morton posted a stronger line than Jonathan Aro. Sparrow Morton posted stronger numbers in ERA (5.29 vs 6.55) and WHIP (1.588 vs 1.909). By the career numbers, Sparrow Morton 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.