Joe Nelson vs. Leon Williams — Career Comparison

Looking at the career totals, Joe Nelson and Leon Williams are fairly close on the surface numbers. Joe Nelson posted stronger numbers in ERA (4.38 vs 5.4) and WHIP (1.507 vs 2.160). Leon Williams had the advantage in home runs allowed (0 per nine innings vs 1.18). By the career numbers, Joe Nelson 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.