John McCarty vs. Justin Speier — Career Comparison

Looking at the career totals, John McCarty and Justin Speier are fairly close on the surface numbers. John McCarty posted stronger numbers in ERA (3.91 vs 4.11) and home runs allowed (0.3 per nine innings vs 1.44). Justin Speier had the advantage in WHIP (1.304 vs 1.738). By the career numbers, John McCarty 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.