John Perkovich vs. Josh Roenicke — Career Comparison

On the career pitching numbers, Josh Roenicke posted a stronger line than John Perkovich. Josh Roenicke posted stronger numbers in ERA (4.17 vs 7.2) and home runs allowed (0.78 per nine innings vs 5.4). By the career numbers, Josh Roenicke 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.