Zach McClellan vs. Diomedes Olivo — Career Comparison

Looking at the career totals, Zach McClellan and Diomedes Olivo are fairly close on the surface numbers. Diomedes Olivo posted stronger numbers in ERA (3.1 vs 5.79) and WHIP (1.491 vs 1.929). Zach McClellan had the advantage in home runs allowed (0 per nine innings vs 0.59). By the career numbers, Diomedes Olivo 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.