Jamie Arnold vs. Jackie Brown — Career Comparison

Jackie Brown built a career as a starting pitcher and Jamie Arnold as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jackie Brown led in strikeout rate (K%+ 102 vs 46), run prevention (ERA+ 91 vs 79), and skill-based run prevention (DICE+ 100 vs 94). Jamie Arnold held the edge in home run suppression (HR9+ 320 vs 103). Role difference aside, Jackie Brown holds a clear edge on every meaningful shared measure.