Roberto Hernandez vs. Luke Putkonen — Career Comparison

On the career pitching numbers, Roberto Hernandez posted a stronger line than Luke Putkonen. Roberto Hernandez posted stronger numbers in ERA (3.45 vs 4.66) and WHIP (1.416 vs 1.552). By the career numbers, Roberto Hernandez 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.