Jose Alvarez vs. Simon Castro — Career Comparison

Looking at the career totals, Jose Alvarez and Simon Castro are fairly close on the surface numbers. Jose Alvarez posted stronger numbers in ERA (2.99 vs 4.5) and home runs allowed (0.67 per nine innings vs 1.33). Simon Castro had the advantage in WHIP (1.296 vs 1.441). By the career numbers, Jose Alvarez 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.