Cody Allen vs. Jimmy Nelson — Career Comparison

Jimmy Nelson built a career as a starting pitcher and Cody Allen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Cody Allen led in run prevention (ERA+ 144 vs 105), strikeout rate (K%+ 137 vs 105), and skill-based run prevention (DICE+ 119 vs 108). Jimmy Nelson held the edge in home run suppression (HR9+ 119 vs 94). Role difference aside, Cody Allen holds a clear edge on every meaningful shared measure.