A. J. Griffin vs. Dave Leonhard — Career Comparison

A. J. Griffin built a career as a starting pitcher and Dave Leonhard as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dave Leonhard led in home run suppression (HR9+ 91 vs 64), run prevention (ERA+ 117 vs 97), and skill-based run prevention (DICE+ 89 vs 83). A. J. Griffin held the edge in strikeout rate (K%+ 108 vs 66). Role difference aside, Dave Leonhard holds a clear edge on every meaningful shared measure.