Michael Kopech vs. Hideki Okajima — Career Comparison

Michael Kopech built a career as a starting pitcher and Hideki Okajima as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Hideki Okajima led in walk avoidance (BB%+ 120 vs 58), run prevention (ERA+ 142 vs 95), and skill-based run prevention (DICE+ 111 vs 78). Role difference aside, Hideki Okajima holds a clear edge on every meaningful shared measure.