Pierson Ohl vs. David Rollins — Career Comparison

On the career pitching numbers, Pierson Ohl posted a stronger line than David Rollins. Pierson Ohl posted stronger numbers in ERA (5.1 vs 7.6) and WHIP (1.500 vs 1.922). By the career numbers, Pierson Ohl 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.