John McCarty vs. Grant Roberts — Career Comparison

Looking at the career totals, John McCarty and Grant Roberts are fairly close on the surface numbers. John McCarty posted stronger numbers in ERA (3.91 vs 4.25) and home runs allowed (0.3 per nine innings vs 0.62). Grant Roberts had the advantage in WHIP (1.515 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.