Hisashi Iwakuma vs. Scott Service — Career Comparison

Hisashi Iwakuma built a career as a starting pitcher and Scott Service as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Hisashi Iwakuma led in walk avoidance (BB%+ 160 vs 100), run prevention (ERA+ 124 vs 96), and skill-based run prevention (DICE+ 109 vs 103). Scott Service held the edge in strikeout rate (K%+ 128 vs 106). Role difference aside, Hisashi Iwakuma holds a clear edge on every meaningful shared measure.