Jim Acker vs. Steven Matz — Career Comparison

Steven Matz built a career as a starting pitcher and Jim Acker as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Steven Matz led in strikeout rate (K%+ 104 vs 78), skill-based run prevention (DICE+ 108 vs 86), and run prevention (ERA+ 111 vs 92). Role difference aside, Steven Matz holds a clear edge on every meaningful shared measure.