Jose Mercedes vs. Les Mueller — Career Comparison

On the career pitching numbers, Les Mueller posted a stronger line than Jose Mercedes. Les Mueller posted stronger numbers in ERA (3.78 vs 4.75) and WHIP (1.314 vs 1.455). By the career numbers, Les Mueller 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.