Jack Armstrong vs. Sam Dyson — Career Comparison

Jack Armstrong built a career as a starting pitcher and Sam Dyson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sam Dyson led in home run suppression (HR9+ 196 vs 85), run prevention (ERA+ 139 vs 89), and skill-based run prevention (DICE+ 109 vs 89). Jack Armstrong held the edge in strikeout rate (K%+ 103 vs 83). Role difference aside, Sam Dyson holds a clear edge on every meaningful shared measure.