Bill Popp vs. Rex Smith — Career Comparison

Looking at the career totals, Bill Popp and Rex Smith are fairly close on the surface numbers. Bill Popp posted stronger numbers in ERA (4.92 vs 5.5) and WHIP (1.873 vs 2.111). Rex Smith had the advantage in home runs allowed (0 per nine innings vs 0.3). By the career numbers, Bill Popp 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.