Jonathan Aro vs. Merkin Valdez — Career Comparison

On the career pitching numbers, Merkin Valdez posted a stronger line than Jonathan Aro. Merkin Valdez posted stronger numbers in ERA (5.57 vs 6.55) and WHIP (1.789 vs 1.909). By the career numbers, Merkin Valdez 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.