Ed Pierce vs. Lefty Robinson — Career Comparison

Looking at the career totals, Ed Pierce and Lefty Robinson are fairly close on the surface numbers. Lefty Robinson posted stronger numbers in WHIP (1.728 vs 2.438) and home runs allowed (0.1 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 6.95). By the career numbers, Lefty Robinson 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.