Jeremy Affeldt vs. Kodai Senga — Career Comparison

Kodai Senga built a career as a starting pitcher and Jeremy Affeldt as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kodai Senga led in run prevention (ERA+ 146 vs 98), strikeout rate (K%+ 120 vs 81), and skill-based run prevention (DICE+ 113 vs 89). Jeremy Affeldt held the edge in walk avoidance (BB%+ 87 vs 70). Role difference aside, Kodai Senga holds a clear edge on every meaningful shared measure.