Ryan Dempster vs. Sean Doolittle — Career Comparison

Ryan Dempster 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 walk avoidance (BB%+ 161 vs 73), run prevention (ERA+ 119 vs 83), and skill-based run prevention (DICE+ 126 vs 90). Role difference aside, Sean Doolittle holds a clear edge on every meaningful shared measure.