Art Mahaffey vs. John Miller — Career Comparison

Looking at the career totals, Art Mahaffey and John Miller are fairly close on the surface numbers. John Miller posted stronger numbers in ERA (3.89 vs 4.17) and home runs allowed (0.79 per nine innings vs 1.13). Art Mahaffey had the advantage in WHIP (1.351 vs 1.449). By the career numbers, John Miller 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.