Jason Johnson vs. Joel Zumaya — Career Comparison

Jason Johnson built a career as a starting pitcher and Joel Zumaya as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Joel Zumaya led in home run suppression (HR9+ 280 vs 94), run prevention (ERA+ 187 vs 92), and skill-based run prevention (DICE+ 150 vs 90). Role difference aside, Joel Zumaya holds a clear edge on every meaningful shared measure.