Zack Greinke vs. George Johnson — Career Comparison

Looking at the career totals, Zack Greinke and George Johnson are fairly close on the surface numbers. George Johnson posted stronger numbers in ERA (2.95 vs 3.49) and home runs allowed (0.2 per nine innings vs 0.97). Zack Greinke had the advantage in WHIP (1.178 vs 1.248). By the career numbers, George 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.