Raleigh Aitchison vs. Michael Kopech — Career Comparison

On the career pitching numbers, Raleigh Aitchison posted a stronger line than Michael Kopech. Raleigh Aitchison posted stronger numbers in ERA (3.01 vs 4.14) and WHIP (1.260 vs 1.333). By the career numbers, Raleigh Aitchison 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.