Luis Castillo vs. Cal Quantrill — Career Comparison

Looking at the career totals, Luis Castillo and Cal Quantrill are fairly close on the surface numbers. Cal Quantrill posted stronger numbers in ERA (4.35 vs 5.06) and WHIP (1.337 vs 1.969). Luis Castillo had the advantage in home runs allowed (0 per nine innings vs 1.2). By the career numbers, Cal Quantrill 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.