Zach McClellan vs. Carlos Villanueva — Career Comparison

Looking at the career totals, Zach McClellan and Carlos Villanueva are fairly close on the surface numbers. Carlos Villanueva posted stronger numbers in ERA (4.31 vs 5.79) and WHIP (1.327 vs 1.929). Zach McClellan had the advantage in home runs allowed (0 per nine innings vs 1.25). By the career numbers, Carlos Villanueva 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.