Bob Blewett vs. Miguel Castro — Career Comparison

Looking at the career totals, Bob Blewett and Miguel Castro are fairly close on the surface numbers. Miguel Castro posted stronger numbers in ERA (4.24 vs 4.82) and WHIP (1.427 vs 1.643). Bob Blewett had the advantage in home runs allowed (0 per nine innings vs 1.14). By the career numbers, Miguel 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.