Art Mahaffey vs. Jeff Montgomery — Career Comparison

Art Mahaffey built a career as a starting pitcher and Jeff Montgomery as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Montgomery led in walk avoidance (BB%+ 118 vs 94), run prevention (ERA+ 103 vs 90), and skill-based run prevention (DICE+ 96 vs 90). Role difference aside, Jeff Montgomery holds a clear edge on every meaningful shared measure.