Bob Blewett vs. Joel Carreno — Career Comparison

Looking at the career totals, Bob Blewett and Joel Carreno are fairly close on the surface numbers. Joel Carreno posted stronger numbers in ERA (4.06 vs 4.82) and WHIP (1.354 vs 1.643). Bob Blewett had the advantage in home runs allowed (0 per nine innings vs 1.91). By the career numbers, Joel Carreno 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.