Zach Duke vs. Eddie Jefferson — Career Comparison

Looking at the career totals, Zach Duke and Eddie Jefferson are fairly close on the surface numbers. Zach Duke posted stronger numbers in ERA (4.31 vs 5.72) and WHIP (1.474 vs 1.694). Eddie Jefferson had the advantage in home runs allowed (0 per nine innings vs 0.87). 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.