George Caster vs. AJ Smith-Shawver — Career Comparison

Looking at the career totals, George Caster and AJ Smith-Shawver are fairly close on the surface numbers. AJ Smith-Shawver posted stronger numbers in ERA (3.77 vs 4.54) and WHIP (1.297 vs 1.500). George Caster had the advantage in home runs allowed (0.79 per nine innings vs 1.34). By the career numbers, AJ Smith-Shawver 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.