John Perkovich vs. Davis Romero — Career Comparison

On the career pitching numbers, Davis Romero posted a stronger line than John Perkovich. Davis Romero posted stronger numbers in ERA (3.86 vs 7.2) and home runs allowed (0.55 per nine innings vs 5.4). By the career numbers, Davis Romero 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.