Luis Castillo vs. Mike Willis — Career Comparison

Luis Castillo built a career as a starting pitcher and Mike Willis as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Luis Castillo led in home run suppression (HR9+ 104 vs 61), run prevention (ERA+ 111 vs 81), and skill-based run prevention (DICE+ 108 vs 84). Role difference aside, Luis Castillo holds a clear edge on every meaningful shared measure.