Julian Aguiar vs. Michael Kopech — Career Comparison

On the career pitching numbers, Michael Kopech posted a stronger line than Julian Aguiar. Michael Kopech posted stronger numbers in ERA (4.14 vs 6.25) and home runs allowed (1.45 per nine innings vs 2.27). By the career numbers, Michael Kopech 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.