R. A. Dickey vs. Zack Kelly — Career Comparison

R. A. Dickey built a career as a starting pitcher and Zack Kelly as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Zack Kelly led in home run suppression (HR9+ 102 vs 84), strikeout rate (K%+ 101 vs 86), and skill-based run prevention (DICE+ 97 vs 87). R. A. Dickey held the edge in run prevention (ERA+ 94 vs 91). Role difference aside, Zack Kelly holds a clear edge on every meaningful shared measure.