Craig Chamberlain vs. Michael Kopech — Career Comparison

Looking at the career totals, Craig Chamberlain and Michael Kopech are fairly close on the surface numbers. Craig Chamberlain had the edge in home runs allowed (1.14 per nine innings vs 1.45). By the career numbers, Craig Chamberlain 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.