Rudy Arroyo vs. Rick Grapenthin — Career Comparison

Looking at the career totals, Rudy Arroyo and Rick Grapenthin are fairly close on the surface numbers. Rick Grapenthin posted stronger numbers in WHIP (1.588 vs 2.057) and home runs allowed (1.32 per nine innings vs 1.54). Rudy Arroyo had the advantage in ERA (5.4 vs 6.35). By the career numbers, Rick Grapenthin 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.