Carlos Diaz vs. Leon Williams — Career Comparison

Looking at the career totals, Carlos Diaz and Leon Williams are fairly close on the surface numbers. Carlos Diaz posted stronger numbers in ERA (3.21 vs 5.4) and WHIP (1.453 vs 2.160). Leon Williams had the advantage in home runs allowed (0 per nine innings vs 0.59). By the career numbers, Carlos Diaz 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.