Bob Blewett vs. Simon Castro — Career Comparison

Looking at the career totals, Bob Blewett and Simon Castro are fairly close on the surface numbers. Simon Castro posted stronger numbers in ERA (4.5 vs 4.82) and WHIP (1.296 vs 1.643). Bob Blewett had the advantage in home runs allowed (0 per nine innings vs 1.33). By the career numbers, Simon Castro 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.