Mike Caldwell vs. AJ Smith-Shawver — Career Comparison

Looking at the career totals, Mike Caldwell and AJ Smith-Shawver are fairly close on the surface numbers. Mike Caldwell had the edge in home runs allowed (0.81 per nine innings vs 1.34). By the career numbers, Mike Caldwell 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.