Charlie Kerfeld vs. Zach Maxwell — Career Comparison

Looking at the career totals, Charlie Kerfeld and Zach Maxwell are fairly close on the surface numbers. Charlie Kerfeld posted stronger numbers in ERA (4.2 vs 4.5) and home runs allowed (0.54 per nine innings vs 2.7). Zach Maxwell had the advantage in WHIP (1.400 vs 1.572). By the career numbers, Charlie Kerfeld 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.