Francisco de la Rosa vs. Shad Williams — Career Comparison

On the career pitching numbers, Francisco de la Rosa posted a stronger line than Shad Williams. Francisco de la Rosa posted stronger numbers in ERA (4.5 vs 8.59) and WHIP (2.000 vs 2.352). By the career numbers, Francisco de la Rosa 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.