Mel Bosser vs. Alberto Castillo — Career Comparison

Looking at the career totals, Mel Bosser and Alberto Castillo are fairly close on the surface numbers. Mel Bosser posted stronger numbers in ERA (3.38 vs 4.33) and home runs allowed (0 per nine innings vs 1.19). Alberto Castillo had the advantage in WHIP (1.541 vs 1.625). By the career numbers, Mel Bosser 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.