Lou Polli vs. Pedro Villarreal — Career Comparison

Looking at the career totals, Lou Polli and Pedro Villarreal are fairly close on the surface numbers. Pedro Villarreal posted stronger numbers in ERA (4.29 vs 4.68) and WHIP (1.486 vs 1.843). Lou Polli had the advantage in home runs allowed (0.64 per nine innings vs 1.39). By the career numbers, Pedro Villarreal 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.