Javier Assad vs. Bill Williams — Career Comparison

On the career pitching numbers, Javier Assad posted a stronger line than Bill Williams. Javier Assad posted stronger numbers in ERA (3.43 vs 5.06) and home runs allowed (1.09 per nine innings vs 1.69). By the career numbers, Javier Assad 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.