Michael Kopech vs. Kaiser Wilhelm — Career Comparison

On the career pitching numbers, Kaiser Wilhelm posted a stronger line than Michael Kopech. Kaiser Wilhelm posted stronger numbers in ERA (3.44 vs 4.14) and home runs allowed (0.21 per nine innings vs 1.45). By the career numbers, Kaiser Wilhelm 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.