Mike Duvall vs. Dave Johnson — Career Comparison

On the career pitching numbers, Dave Johnson posted a stronger line than Mike Duvall. Dave Johnson posted stronger numbers in ERA (4.64 vs 4.76) and WHIP (1.610 vs 1.863). By the career numbers, Dave Johnson 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.