Mike Armstrong vs. Ray Herbert — Career Comparison

Ray Herbert 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 78), run prevention (ERA+ 110 vs 93), and home run suppression (HR9+ 95 vs 85). Ray Herbert held the edge in walk avoidance (BB%+ 157 vs 90). Role difference aside, Mike Armstrong holds a clear edge on every meaningful shared measure.