Carlos Contreras vs. Mutt Williams — Career Comparison

On the career pitching numbers, Mutt Williams posted a stronger line than Carlos Contreras. Mutt Williams posted stronger numbers in ERA (4.91 vs 5.51) and WHIP (1.364 vs 1.648). By the career numbers, Mutt Williams 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.