Spencer Arrighetti vs. Andy Coakley — Career Comparison

On the career pitching numbers, Andy Coakley posted a stronger line than Spencer Arrighetti. Andy Coakley posted stronger numbers in ERA (2.35 vs 4.69) and WHIP (1.245 vs 1.409). By the career numbers, Andy Coakley 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.