Jack Armstrong vs. Jeff Gray — Career Comparison

Jack Armstrong built a career as a starting pitcher and Jeff Gray as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Gray led in walk avoidance (BB%+ 181 vs 91), skill-based run prevention (DICE+ 130 vs 89), and run prevention (ERA+ 127 vs 89). Role difference aside, Jeff Gray holds a clear edge on every meaningful shared measure.