Johnny Hetki vs. Bill Popp — Career Comparison

Looking at the career totals, Johnny Hetki and Bill Popp are fairly close on the surface numbers. Johnny Hetki posted stronger numbers in ERA (4.39 vs 4.92) and WHIP (1.412 vs 1.873). Bill Popp had the advantage in home runs allowed (0.3 per nine innings vs 0.72). By the career numbers, Johnny Hetki 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.