Shawn Armstrong vs. John Rocker — Career Comparison

The numbers give John Rocker a clear advantage over Shawn Armstrong across the core pitching metrics. John Rocker led in run prevention (ERA+ 159 vs 96), strikeout rate (K%+ 160 vs 103), and home run suppression (HR9+ 151 vs 110). Shawn Armstrong held the edge in walk avoidance (BB%+ 117 vs 72). John Rocker was the better reliever — the numbers make that case clearly.