Mark Prior vs. Denny Riddleberger — Career Comparison

Mark Prior built a career as a starting pitcher and Denny Riddleberger as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mark Prior led in strikeout rate (K%+ 170 vs 115), skill-based run prevention (DICE+ 137 vs 93), and home run suppression (HR9+ 112 vs 70). Role difference aside, Mark Prior holds a clear edge on every meaningful shared measure.