Slim McGrew vs. Bill Quarles — Career Comparison

Looking at the career totals, Slim McGrew and Bill Quarles are fairly close on the surface numbers. Bill Quarles posted stronger numbers in ERA (6.24 vs 6.6) and WHIP (1.633 vs 1.900). Slim McGrew had the advantage in home runs allowed (0.3 per nine innings vs 0.55). By the career numbers, Bill Quarles 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.