Jackie Collum vs. Slim McGrew — Career Comparison

Looking at the career totals, Jackie Collum and Slim McGrew are fairly close on the surface numbers. Jackie Collum posted stronger numbers in ERA (4.15 vs 6.6) and WHIP (1.431 vs 1.900). Slim McGrew had the advantage in home runs allowed (0.3 per nine innings vs 0.85). By the career numbers, Jackie Collum 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.