John Perkovich vs. Leon Pettit — Career Comparison

Looking at the career totals, John Perkovich and Leon Pettit are fairly close on the surface numbers. Leon Pettit posted stronger numbers in ERA (5.18 vs 7.2) and home runs allowed (0.56 per nine innings vs 5.4). John Perkovich had the advantage in WHIP (1.600 vs 1.743). By the career numbers, Leon Pettit 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.