Ken Johnson vs. Seth Martinez — Career Comparison

Ken Johnson built a career as a starting pitcher and Seth Martinez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Seth Martinez led in run prevention (ERA+ 122 vs 100), home run suppression (HR9+ 108 vs 91), and strikeout rate (K%+ 89 vs 83). Ken Johnson held the edge in walk avoidance (BB%+ 139 vs 104). Role difference aside, Seth Martinez holds a clear edge on every meaningful shared measure.