Pedro Borbon vs. Rafael Valdez — Career Comparison

On the career pitching numbers, Pedro Borbon posted a stronger line than Rafael Valdez. Pedro Borbon posted stronger numbers in ERA (3.52 vs 11.12) and WHIP (1.395 vs 2.294). By the career numbers, Pedro Borbon 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.