David Hernandez vs. Jordan Zimmermann — Career Comparison

Jordan Zimmermann built a career as a starting pitcher and David Hernandez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jordan Zimmermann led in walk avoidance (BB%+ 148 vs 92), home run suppression (HR9+ 91 vs 74), and skill-based run prevention (DICE+ 95 vs 89). David Hernandez held the edge in strikeout rate (K%+ 105 vs 82). Role difference aside, Jordan Zimmermann holds a clear edge on every meaningful shared measure.