Jack Armstrong vs. Travis Phelps — Career Comparison

Jack Armstrong built a career as a starting pitcher and Travis Phelps as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Travis Phelps led in run prevention (ERA+ 108 vs 89), strikeout rate (K%+ 118 vs 103), and home run suppression (HR9+ 92 vs 85). Jack Armstrong held the edge in walk avoidance (BB%+ 91 vs 81). Role difference aside, Travis Phelps holds a clear edge on every meaningful shared measure.