Mike Armstrong vs. Jim Shellenback — Career Comparison

Jim Shellenback built a career as a starting pitcher and Mike Armstrong as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Armstrong led in strikeout rate (K%+ 107 vs 77), run prevention (ERA+ 110 vs 98), and walk avoidance (BB%+ 90 vs 86). Jim Shellenback held the edge in home run suppression (HR9+ 138 vs 95). Role difference aside, Mike Armstrong holds a clear edge on every meaningful shared measure.