Jonathan Papelbon vs. Andy Sonnanstine — Career Comparison

Andy Sonnanstine built a career as a starting pitcher and Jonathan Papelbon as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jonathan Papelbon led in run prevention (ERA+ 130 vs 90), strikeout rate (K%+ 115 vs 101), and skill-based run prevention (DICE+ 117 vs 109). Andy Sonnanstine held the edge in walk avoidance (BB%+ 172 vs 147). Role difference aside, Jonathan Papelbon holds a clear edge on every meaningful shared measure.