David Hernandez vs. Mark Langston — Career Comparison

Mark Langston 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. Mark Langston led in run prevention (ERA+ 108 vs 83), strikeout rate (K%+ 125 vs 105), and skill-based run prevention (DICE+ 94 vs 89). David Hernandez held the edge in walk avoidance (BB%+ 92 vs 82). Role difference aside, Mark Langston holds a clear edge on every meaningful shared measure.