Mike Birkbeck vs. Art Smith — Career Comparison

On the career pitching numbers, Mike Birkbeck posted a stronger line than Art Smith. Mike Birkbeck posted stronger numbers in ERA (4.86 vs 11.57) and WHIP (1.539 vs 3.000). By the career numbers, Mike Birkbeck 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.