Enerio Del Rosario vs. Jay Marshall — Career Comparison

On the career pitching numbers, Enerio Del Rosario posted a stronger line than Jay Marshall. Enerio Del Rosario posted stronger numbers in ERA (5.6 vs 7.66) and home runs allowed (0.44 per nine innings vs 0.73). By the career numbers, Enerio Del Rosario 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.