John Perkovich vs. Kyle Zimmer — Career Comparison

On the career pitching numbers, Kyle Zimmer posted a stronger line than John Perkovich. Kyle Zimmer posted stronger numbers in ERA (5.19 vs 7.2) and home runs allowed (0.85 per nine innings vs 5.4). By the career numbers, Kyle Zimmer 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.