Kolby Allard vs. Zach Duke — Career Comparison

Looking at the career totals, Kolby Allard and Zach Duke are fairly close on the surface numbers. Zach Duke posted stronger numbers in ERA (4.31 vs 5.34) and home runs allowed (0.87 per nine innings vs 1.6). Kolby Allard had the advantage in WHIP (1.409 vs 1.474). By the career numbers, Zach Duke 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.