Michael Kopech vs. Willie Stevenson — Career Comparison

Looking at the career totals, Michael Kopech and Willie Stevenson are fairly close on the surface numbers. Willie Stevenson posted stronger numbers in WHIP (1.258 vs 1.333) and home runs allowed (0.87 per nine innings vs 1.45). Michael Kopech had the advantage in ERA (4.14 vs 5.23). By the career numbers, Willie Stevenson 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.