Michael Mercado vs. Ron Robinson — Career Comparison

On the career pitching numbers, Ron Robinson posted a stronger line than Michael Mercado. Ron Robinson posted stronger numbers in ERA (3.63 vs 11.81) and WHIP (1.378 vs 2.250). By the career numbers, Ron Robinson 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.