Lou Polli vs. Roy Vaughn — Career Comparison

Looking at the career totals, Lou Polli and Roy Vaughn are fairly close on the surface numbers. Roy Vaughn posted stronger numbers in ERA (2.08 vs 4.68) and WHIP (1.385 vs 1.843). Lou Polli had the advantage in home runs allowed (0.64 per nine innings vs 2.08). By the career numbers, Roy Vaughn 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.