Allan Collamore vs. Bill Williams — Career Comparison

On the career pitching numbers, Allan Collamore posted a stronger line than Bill Williams. Allan Collamore posted stronger numbers in ERA (3.3 vs 5.06) and home runs allowed (0.21 per nine innings vs 1.69). By the career numbers, Allan Collamore 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.