Bobby Ayala vs. Zach McClellan — Career Comparison

Looking at the career totals, Bobby Ayala and Zach McClellan are fairly close on the surface numbers. Bobby Ayala posted stronger numbers in ERA (4.78 vs 5.79) and WHIP (1.472 vs 1.929). Zach McClellan had the advantage in home runs allowed (0 per nine innings vs 1.11). By the career numbers, Bobby Ayala 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.