Ernie Johnson vs. Willis Roberts — Career Comparison

On the career pitching numbers, Ernie Johnson posted a stronger line than Willis Roberts. Ernie Johnson posted stronger numbers in ERA (3.77 vs 4.64) and WHIP (1.458 vs 1.521). By the career numbers, Ernie 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.