Alberto Castillo vs. Deacon Donahue — Career Comparison

Looking at the career totals, Alberto Castillo and Deacon Donahue are fairly close on the surface numbers. Alberto Castillo posted stronger numbers in ERA (4.33 vs 6.75) and WHIP (1.541 vs 1.875). Deacon Donahue had the advantage in home runs allowed (0 per nine innings vs 1.19). By the career numbers, Alberto 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.