John Doherty vs. Sean Doolittle — Career Comparison

John Doherty built a career as a starting pitcher and Sean Doolittle as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sean Doolittle led in strikeout rate (K%+ 114 vs 53), run prevention (ERA+ 119 vs 92), and skill-based run prevention (DICE+ 126 vs 102). John Doherty held the edge in home run suppression (HR9+ 149 vs 114). Role difference aside, Sean Doolittle holds a clear edge on every meaningful shared measure.