Tommy Greene vs. Erik Johnson — Career Comparison

On the career pitching numbers, Tommy Greene posted a stronger line than Erik Johnson. Tommy Greene posted stronger numbers in ERA (4.14 vs 5.28) and WHIP (1.342 vs 1.632). By the career numbers, Tommy Greene 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.