Yilber Díaz vs. Butch Henry — Career Comparison

On the career pitching numbers, Butch Henry posted a stronger line than Yilber Díaz. Butch Henry posted stronger numbers in ERA (3.83 vs 4.31) and WHIP (1.354 vs 1.468). By the career numbers, Butch Henry 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.