Pierce Johnson vs. Aaron Laffey — Career Comparison

Aaron Laffey built a career as a starting pitcher and Pierce Johnson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Pierce Johnson led in strikeout rate (K%+ 115 vs 63), skill-based run prevention (DICE+ 108 vs 86), and run prevention (ERA+ 110 vs 98). Aaron Laffey held the edge in home run suppression (HR9+ 122 vs 99). Role difference aside, Pierce Johnson holds a clear edge on every meaningful shared measure.