Hayden Birdsong vs. Ray Corbin — Career Comparison

On the career pitching numbers, Ray Corbin posted a stronger line than Hayden Birdsong. Ray Corbin posted stronger numbers in ERA (3.84 vs 4.77) and home runs allowed (0.81 per nine innings vs 1.37). By the career numbers, Ray Corbin 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.