Jo-Jo Reyes vs. Willis Roberts — Career Comparison

Jo-Jo Reyes built a career as a starting pitcher and Willis Roberts as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Willis Roberts led in home run suppression (HR9+ 113 vs 75), run prevention (ERA+ 97 vs 75), and skill-based run prevention (DICE+ 94 vs 82). Role difference aside, Willis Roberts holds a clear edge on every meaningful shared measure.