Frank Castillo vs. Andrew Chafin — Career Comparison

Frank Castillo built a career as a starting pitcher and Andrew Chafin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Andrew Chafin led in home run suppression (HR9+ 146 vs 76), run prevention (ERA+ 117 vs 82), and skill-based run prevention (DICE+ 116 vs 92). Frank Castillo held the edge in walk avoidance (BB%+ 113 vs 91). Role difference aside, Andrew Chafin holds a clear edge on every meaningful shared measure.