Paul Erickson vs. Michael Kopech — Career Comparison

Looking at the career totals, Paul Erickson and Michael Kopech are fairly close on the surface numbers. Paul Erickson posted stronger numbers in ERA (3.86 vs 4.14) and home runs allowed (0.45 per nine innings vs 1.45). Michael Kopech had the advantage in WHIP (1.333 vs 1.472). By the career numbers, Paul Erickson 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.