Paul Doyle vs. Michael Kopech — Career Comparison

Michael Kopech built a career as a starting pitcher and Paul Doyle as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Paul Doyle led in walk avoidance (BB%+ 86 vs 58), run prevention (ERA+ 123 vs 95), and skill-based run prevention (DICE+ 89 vs 78). Michael Kopech held the edge in home run suppression (HR9+ 83 vs 70). Role difference aside, Paul Doyle holds a clear edge on every meaningful shared measure.