Walter Clarkson vs. AJ Smith-Shawver — Career Comparison

On the career pitching numbers, Walter Clarkson posted a stronger line than AJ Smith-Shawver. Walter Clarkson posted stronger numbers in ERA (3.17 vs 3.77) and home runs allowed (0.29 per nine innings vs 1.34). By the career numbers, Walter Clarkson 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.