Bill Butler vs. Mark Eichhorn — Career Comparison

Bill Butler built a career as a starting pitcher and Mark Eichhorn as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mark Eichhorn led in walk avoidance (BB%+ 118 vs 74), home run suppression (HR9+ 144 vs 105), and run prevention (ERA+ 108 vs 96). Bill Butler held the edge in strikeout rate (K%+ 106 vs 88). Role difference aside, Mark Eichhorn holds a clear edge on every meaningful shared measure.