Thomas Diamond vs. Slim McGrew — Career Comparison

Looking at the career totals, Thomas Diamond and Slim McGrew are fairly close on the surface numbers. Slim McGrew posted stronger numbers in ERA (6.6 vs 6.83) and home runs allowed (0.3 per nine innings vs 1.55). Thomas Diamond had the advantage in WHIP (1.828 vs 1.900). 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.