Rudy Arroyo vs. Zach McClellan — Career Comparison

Looking at the career totals, Rudy Arroyo and Zach McClellan are fairly close on the surface numbers. Zach McClellan posted stronger numbers in WHIP (1.929 vs 2.057) and home runs allowed (0 per nine innings vs 1.54). Rudy Arroyo had the advantage in ERA (5.4 vs 5.79). By the career numbers, Zach McClellan 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.