Frank Castillo vs. Wilton Lopez — Career Comparison

Frank Castillo built a career as a starting pitcher and Wilton Lopez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Wilton Lopez led in walk avoidance (BB%+ 280 vs 113), home run suppression (HR9+ 140 vs 76), and run prevention (ERA+ 132 vs 82). Frank Castillo held the edge in strikeout rate (K%+ 97 vs 86). Role difference aside, Wilton Lopez holds a clear edge on every meaningful shared measure.