Wilson Alvarez vs. John Rocker — Career Comparison

Wilson Alvarez built a career as a starting pitcher and John Rocker as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Rocker led in run prevention (ERA+ 159 vs 110), strikeout rate (K%+ 160 vs 112), and home run suppression (HR9+ 151 vs 105). Role difference aside, John Rocker holds a clear edge on every meaningful shared measure.