Herb Hall vs. Slim McGrew — Career Comparison

Looking at the career totals, Herb Hall and Slim McGrew are fairly close on the surface numbers. Slim McGrew posted stronger numbers in ERA (6.6 vs 15) and WHIP (1.900 vs 3.167). Herb Hall had the advantage in home runs allowed (0 per nine innings vs 0.3). By the career numbers, Slim McGrew 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.