Joe Kohlman vs. William Zay — Career Comparison

Looking at the career totals, Joe Kohlman and William Zay are fairly close on the surface numbers. Joe Kohlman posted stronger numbers in ERA (5.27 vs 9) and WHIP (1.500 vs 4.000). William Zay had the advantage in home runs allowed (0 per nine innings vs 0.33). By the career numbers, Joe Kohlman 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.