Luis Castillo vs. Jon Gray — Career Comparison

Looking at the career totals, Luis Castillo and Jon Gray are fairly close on the surface numbers. Jon Gray posted stronger numbers in ERA (4.49 vs 5.06) and WHIP (1.321 vs 1.969). Luis Castillo had the advantage in home runs allowed (0 per nine innings vs 1.17). By the career numbers, Jon Gray 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.