Art Mahaffey vs. Sam Moll — Career Comparison

Art Mahaffey built a career as a starting pitcher and Sam Moll as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sam Moll led in home run suppression (HR9+ 199 vs 79), run prevention (ERA+ 129 vs 90), and skill-based run prevention (DICE+ 110 vs 90). Art Mahaffey held the edge in walk avoidance (BB%+ 94 vs 87). Role difference aside, Sam Moll holds a clear edge on every meaningful shared measure.