Luis Castillo vs. Tiny Osborne — Career Comparison

Looking at the career totals, Luis Castillo and Tiny Osborne are fairly close on the surface numbers. Luis Castillo posted stronger numbers in ERA (3.55 vs 4.72) and WHIP (1.183 vs 1.560). Tiny Osborne had the advantage in home runs allowed (0.43 per nine innings vs 1.11). By the career numbers, Luis Castillo 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.