Jonathan Loaisiga vs. Art Mahaffey — Career Comparison

Art Mahaffey built a career as a starting pitcher and Jonathan Loaisiga as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jonathan Loaisiga led in home run suppression (HR9+ 240 vs 79), run prevention (ERA+ 146 vs 90), and skill-based run prevention (DICE+ 138 vs 90). Art Mahaffey held the edge in strikeout rate (K%+ 102 vs 89). Role difference aside, Jonathan Loaisiga holds a clear edge on every meaningful shared measure.