Fabio Castillo vs. Ron Mahay — Career Comparison

Looking at the career totals, Fabio Castillo and Ron Mahay are fairly close on the surface numbers. Ron Mahay posted stronger numbers in ERA (3.83 vs 13.5) and WHIP (1.456 vs 3.000). Fabio Castillo had the advantage in home runs allowed (0 per nine innings vs 1.19). By the career numbers, Ron Mahay 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.