Roberto Hernandez vs. Slim McGrew — Career Comparison

Looking at the career totals, Roberto Hernandez and Slim McGrew are fairly close on the surface numbers. Roberto Hernandez posted stronger numbers in ERA (3.45 vs 6.6) and WHIP (1.416 vs 1.900). Slim McGrew had the advantage in home runs allowed (0.3 per nine innings vs 0.81). By the career numbers, Roberto Hernandez 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.