Alberto Arias vs. Bobby Castillo — Career Comparison

Looking at the career totals, Alberto Arias and Bobby Castillo are fairly close on the surface numbers. Alberto Arias posted stronger numbers in ERA (3.74 vs 3.94) and home runs allowed (0.36 per nine innings vs 0.88). Bobby Castillo had the advantage in WHIP (1.431 vs 1.580). By the career numbers, Alberto Arias 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.