Kyle Leahy vs. Art Mahaffey — Career Comparison

Art Mahaffey built a career as a starting pitcher and Kyle Leahy as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kyle Leahy led in home run suppression (HR9+ 171 vs 79), walk avoidance (BB%+ 146 vs 94), and skill-based run prevention (DICE+ 122 vs 90). Art Mahaffey held the edge in strikeout rate (K%+ 102 vs 85). Role difference aside, Kyle Leahy holds a clear edge on every meaningful shared measure.