Robbie Erlin vs. Ray Prim — Career Comparison

On the career pitching numbers, Ray Prim posted a stronger line than Robbie Erlin. Ray Prim posted stronger numbers in ERA (3.56 vs 4.87) and home runs allowed (0.54 per nine innings vs 1.13). By the career numbers, Ray Prim 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.