Saul Rivera vs. Shad Williams — Career Comparison

On the career pitching numbers, Saul Rivera posted a stronger line than Shad Williams. Saul Rivera posted stronger numbers in ERA (4.29 vs 8.59) and WHIP (1.568 vs 2.352). By the career numbers, Saul Rivera 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.