Aroldis Chapman vs. Michael Lorenzen — Career Comparison

Michael Lorenzen built a career as a starting pitcher and Aroldis Chapman as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Aroldis Chapman led in strikeout rate (K%+ 161 vs 84), home run suppression (HR9+ 126 vs 92), and skill-based run prevention (DICE+ 117 vs 87). Michael Lorenzen held the edge in walk avoidance (BB%+ 91 vs 60). Role difference aside, Aroldis Chapman holds a clear edge on every meaningful shared measure.