Willie Jensen vs. Art Mahaffey — Career Comparison

Looking at the career totals, Willie Jensen and Art Mahaffey are fairly close on the surface numbers. Willie Jensen posted stronger numbers in ERA (3.64 vs 4.17) and home runs allowed (0.43 per nine innings vs 1.13). Art Mahaffey had the advantage in WHIP (1.351 vs 1.667). By the career numbers, Willie Jensen 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.