B. J. Rosenberg vs. Trevor Stephan — Career Comparison

On the career pitching numbers, Trevor Stephan posted a stronger line than B. J. Rosenberg. Trevor Stephan posted stronger numbers in ERA (3.73 vs 5.72) and WHIP (1.313 vs 1.571). By the career numbers, Trevor Stephan 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.