Javier Assad vs. Sean Doolittle — Career Comparison

Javier Assad 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 83), skill-based run prevention (DICE+ 126 vs 98), and strikeout rate (K%+ 114 vs 94). Javier Assad held the edge in run prevention (ERA+ 131 vs 119). Role difference aside, Sean Doolittle holds a clear edge on every meaningful shared measure.