Rudy Hernandez vs. Matt Koch — Career Comparison

Looking at the career totals, Rudy Hernandez and Matt Koch are fairly close on the surface numbers. Rudy Hernandez posted stronger numbers in ERA (4.12 vs 5.18) and home runs allowed (0.41 per nine innings vs 2.03). Matt Koch had the advantage in WHIP (1.304 vs 1.580). By the career numbers, Rudy 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.