Shang Johnson vs. Jimmy Mayo — Career Comparison

Looking at the career totals, Shang Johnson and Jimmy Mayo are fairly close on the surface numbers. Jimmy Mayo posted stronger numbers in ERA (2.81 vs 4.18) and home runs allowed (0 per nine innings vs 0.2). Shang Johnson had the advantage in WHIP (1.347 vs 1.563). By the career numbers, Jimmy Mayo 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.