Walt Masterson vs. AJ Smith-Shawver — Career Comparison

Looking at the career totals, Walt Masterson and AJ Smith-Shawver are fairly close on the surface numbers. AJ Smith-Shawver posted stronger numbers in ERA (3.77 vs 4.15) and WHIP (1.297 vs 1.515). Walt Masterson had the advantage in home runs allowed (0.55 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.