Mickey Haefner vs. Hank Johnson — Career Comparison

On the career pitching numbers, Mickey Haefner posted a stronger line than Hank Johnson. Mickey Haefner posted stronger numbers in ERA (3.5 vs 4.75) and WHIP (1.358 vs 1.570). By the career numbers, Mickey Haefner 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.